Psalm 105:3 urges 'glory in his holy name,' directly matching Paul's command to 'glory in the Lord.'

Isaiah 41:16 says 'thou shalt glory in the Holy One of Israel,' an exact parallel to Paul's boast-in-the-Lord principle.

Isaiah 45:25 states 'In the Lord shall all the seed of Israel be... glory,' mirroring Paul's call to boast only in the Lord.

Jeremiah 9:23 forbids boasting in human wisdom, might, or riches—the very pride Paul opposes.

Jeremiah 9:24 is the direct source Paul quotes: 'Let him who boasts boast in the Lord'—identical teaching.

1 Corinthians 1:29 says no human may boast before God—the negative counterpart to boasting in the Lord.

1 Corinthians 1:31 quotes the same Jeremiah verse verbatim—Paul repeats the command to boast only in the Lord.

Galatians 6:13 shows false teachers boasting in fleshly circumcision—contrasts with boasting in the Lord.

Galatians 6:14 boasts only in the cross—a specific Christ-centered application of boasting in the Lord.

Philippians 3:3 says we glory in Christ Jesus and put no confidence in the flesh—identical attitude.

Psalm 34:2 declares the same principle — 'my soul makes its boast in the Lord' — directly echoing the call to boast only in God.

Isaiah 2:11 shows human pride brought low and the Lord alone exalted, reinforcing that boasting belongs only to God.

In Jeremiah 4:2, boasting in the Lord is tied to truth and righteousness—Paul echoes this exclusive boasting in God.