Matthew 24:31 explicitly describes the gathering of the elect by angels with a trumpet — the same end-times event Paul refers to.

Mark 13:27 similarly describes the gathering of the elect by angels from the ends of the earth — directly parallel to this verse.

1 Thessalonians 3:13 prays for blamelessness at the coming of the Lord with all his holy ones — the same coming and gathering context.

1 Thessalonians 4:14-16 provides the detailed description of Christ's return and the gathering of believers — the same event referenced here.

1 Thessalonians 4:17 describes the rapture—believers caught up to meet the Lord, which is the 'gathering together' in 2 Thessalonians 2:1.

John 14:3 records Jesus' promise to come again and receive believers to Himself, directly paralleling the 'coming' and 'gathering' in 2 Thessalonians 2:1.

1 Thessalonians 2:19 speaks of believers being present with Christ at His coming, directly tying to the 'coming' and 'gathering' in 2 Thessalonians 2:1.

1 Timothy 6:14 urges obedience until Christ's appearing, the same event referenced in 2 Thessalonians 2:1.

Hebrews 9:28 describes Christ's second appearance for salvation, directly correlating with the 'coming' and 'gathering' in 2 Thessalonians 2:1.

Psalm 50:5 depicts God gathering His saints to Himself, echoing the 'gathering together' in 2 Thessalonians 2:1, though in an OT judgment context.