| 1 Thess 1:2 | Prescription against Heretics 27 · Tertullian | allusion, low confidence | ca. 203 |
| 1 Thess 2:4 | To the Romans 2.1 · Ignatius of Antioch | allusion, medium confidence | ca. 110 (range ca. 105–135) |
| 1 Thess 2:4 | Miscellanies 7.12.70 · Clement of Alexandria | quotation, medium confidence | ca. 198–203 |
| 1 Thess 2:5 | Miscellanies 1.1.6 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 2:6 | Miscellanies 1.1.6 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 2:7 | The Instructor 1.5.19 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 2:7 | Miscellanies 1.1.6 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 2:12 | The Instructor 3.11.81 · Clement of Alexandria | echo, medium confidence | ca. 190–200 |
| 1 Thess 2:15 | Epistle of Barnabas 5.11 · Anonymous | echo, medium confidence | ca. 70–135 (often ca. 130) |
| 1 Thess 2:15 | Dialogue with Trypho 16.4 · Justin Martyr | echo, high confidence | ca. 155–160 |
| 1 Thess 2:15 | On Prayer 14 · Tertullian | allusion, medium confidence | ca. 198–206 |
| 1 Thess 2:15 | Against Marcion 5.15 · Tertullian | quotation, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 2:15 | Against Celsus 5.43 · Origen | allusion, medium confidence | ca. 248 |
| 1 Thess 3:13 | Didache 16.7 · Anonymous | echo, medium confidence | ca. 50–150 (often ca. 100) |
| 1 Thess 4:3 | Miscellanies 4.12.87 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 4:3 | Against Marcion 5.15 · Tertullian | quotation, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 4:4 | Miscellanies 2.23.143 · Clement of Alexandria | echo, medium confidence | ca. 198–203 |
| 1 Thess 4:4 | Miscellanies 4.12.87 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 4:4 | Against Marcion 5.15 · Tertullian | quotation, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 4:5 | Miscellanies 4.12.87 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 4:5 | Against Marcion 5.15 · Tertullian | quotation, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 4:6 | Miscellanies 4.12.87 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 4:7 | Miscellanies 4.12.87 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 4:8 | Miscellanies 4.12.87 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 4:9 | Epistle of Barnabas 21.6 · Anonymous | echo, medium confidence | ca. 70–135 (often ca. 130) |
| 1 Thess 4:9 | Oration to the Greeks 29 · Tatian | echo, medium confidence | ca. 165–172 |
| 1 Thess 4:9 | The Instructor 1.6.27 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 4:9 | The Instructor 1.6.37 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 4:9 | Miscellanies 1.20.98 · Clement of Alexandria | allusion, high confidence | ca. 198–203 |
| 1 Thess 4:9 | Miscellanies 2.11.48 · Clement of Alexandria | echo, medium confidence | ca. 198–203 |
| 1 Thess 4:9 | Miscellanies 6.18.166 · Clement of Alexandria | echo, medium confidence | ca. 198–203 |
| 1 Thess 4:11 | On Idolatry 5 · Tertullian | allusion, high confidence | ca. 196–211 |
| 1 Thess 4:13 | On Patience 9 · Tertullian | quotation, high confidence | ca. 198–206 |
| 1 Thess 4:13 | Against Celsus 2.65 · Origen | quotation, high confidence | ca. 248 |
| 1 Thess 4:14 | On Patience 9 · Tertullian | allusion, high confidence | ca. 198–206 |
| 1 Thess 4:14 | Against Celsus 2.65 · Origen | quotation, high confidence | ca. 248 |
| 1 Thess 4:15 | Against Celsus 2.65 · Origen | quotation, high confidence | ca. 248 |
| 1 Thess 4:15–17 | Against Celsus 5.17 · Origen | quotation, high confidence | ca. 248 |
| 1 Thess 4:16 | Didache 16.6 · Anonymous | allusion, medium confidence | ca. 50–150 (often ca. 100) |
| 1 Thess 4:16 | On the Shows 29 · Tertullian | allusion, medium confidence | ca. 197–202 |
| 1 Thess 4:16 | On Prayer 29 · Tertullian | allusion, medium confidence | ca. 198–206 |
| 1 Thess 4:16 | Against Marcion 5.15 · Tertullian | allusion, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 4:16 | Against Celsus 2.65 · Origen | quotation, medium confidence | ca. 248 |
| 1 Thess 4:17 | Miscellanies 6.13.107 · Clement of Alexandria | allusion, high confidence | ca. 198–203 |
| 1 Thess 4:17 | Against Marcion 3.24 · Tertullian | quotation, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 4:17 | Against Marcion 5.15 · Tertullian | allusion, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 4:17 | Against Marcion 5.20 · Tertullian | quotation, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 5:2 | Miscellanies 5.8.49 · Clement of Alexandria | allusion, medium confidence | ca. 198–203 |
| 1 Thess 5:5 | The Instructor 2.9.80 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:5 | Against Celsus 2.67 · Origen | allusion, high confidence | ca. 248 |
| 1 Thess 5:5 | On the Lord's Prayer 35 · Cyprian of Carthage | echo, low confidence | ca. 252 |
| 1 Thess 5:6 | The Instructor 2.9.80 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:6 | Miscellanies 4.22.140 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 5:7 | The Instructor 2.9.80 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:7 | Miscellanies 4.22.140 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 5:8 | To Polycarp 6.2 · Ignatius of Antioch | echo, medium confidence | ca. 110 (range ca. 105–135) |
| 1 Thess 5:8 | Oration to the Greeks 16 · Tatian | echo, low confidence | ca. 165–172 |
| 1 Thess 5:8 | The Instructor 2.9.80 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:8 | Exhortation to the Greeks 11.116 · Clement of Alexandria | echo, medium confidence | ca. 190–200 |
| 1 Thess 5:8 | Miscellanies 4.22.140 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 5:13 | The Instructor 3.12.95 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:14 | The Instructor 3.12.95 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:15 | The Instructor 3.12.95 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:17 | To the Ephesians 10.1 · Ignatius of Antioch | allusion, medium confidence | ca. 110 (range ca. 105–135) |
| 1 Thess 5:17 | To Polycarp 1.3 · Ignatius of Antioch | allusion, medium confidence | ca. 110 (range ca. 105–135) |
| 1 Thess 5:17 | The Instructor 2.9.82 · Clement of Alexandria | echo, medium confidence | ca. 190–200 |
| 1 Thess 5:17 | Miscellanies 6.12.102 · Clement of Alexandria | echo, low confidence | ca. 198–203 |
| 1 Thess 5:17 | Miscellanies 7.7.35 · Clement of Alexandria | echo, medium confidence | ca. 198–203 |
| 1 Thess 5:17 | On Prayer 23 · Tertullian | allusion, high confidence | ca. 198–206 |
| 1 Thess 5:17 | On Prayer 12.1 · Origen | quotation, high confidence | ca. 233–234 |
| 1 Thess 5:17 | On Prayer 12.2 · Origen | quotation, high confidence | ca. 233–234 |
| 1 Thess 5:17 | On Prayer 22.5 · Origen | allusion, high confidence | ca. 233–234 |
| 1 Thess 5:17 | On Prayer 25.2 · Origen | allusion, high confidence | ca. 233–234 |
| 1 Thess 5:17 | Against Celsus 8.21 · Origen | allusion, medium confidence | ca. 248 |
| 1 Thess 5:17 | On the Lord's Prayer 36 · Cyprian of Carthage | echo, low confidence | ca. 252 |
| 1 Thess 5:18 | Miscellanies 6.14.113 · Clement of Alexandria | echo, low confidence | ca. 198–203 |
| 1 Thess 5:19 | The Instructor 3.12.95 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:19 | Against Marcion 5.15 · Tertullian | allusion, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 5:20 | The Instructor 3.12.95 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:20 | Against Marcion 5.15 · Tertullian | allusion, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 5:21 | The Instructor 3.12.95 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:21 | Miscellanies 1.11.53 · Clement of Alexandria | quotation, high confidence | ca. 198–203 |
| 1 Thess 5:21 | Miscellanies 1.28.177 · Clement of Alexandria | allusion, high confidence | ca. 198–203 |
| 1 Thess 5:21 | Prescription against Heretics 4 · Tertullian | quotation, high confidence | ca. 203 |
| 1 Thess 5:22 | Didache 3.1 · Anonymous | echo, medium confidence | ca. 50–150 (often ca. 100) |
| 1 Thess 5:22 | The Instructor 3.12.95 · Clement of Alexandria | quotation, high confidence | ca. 190–200 |
| 1 Thess 5:23 | The Instructor 2.2.20 · Clement of Alexandria | echo, medium confidence | ca. 190–200 |
| 1 Thess 5:23 | Against Marcion 5.15 · Tertullian | quotation, high confidence | 207/208 (third edition, completed later) |
| 1 Thess 5:23 | Against Celsus 2.51 · Origen | echo, medium confidence | ca. 248 |
| 1 Thess 5:24 | To the Trallians 13.3 · Ignatius of Antioch | echo, medium confidence | ca. 110 (range ca. 105–135) |