Psalm 29:11 pronounces that the Lord gives strength to his people, matching the theme of divinely increased strength in this verse.

In Psalm 34:4-6, this same pattern of calling and being answered with deliverance echoes the immediate response and strengthening here.

Psalm 63:8 describes the soul clinging to God and being upheld by his right hand, a vivid parallel to the soul-strengthening here.

Psalm 3:4 directly parallels the experience of calling and being answered — the same confidence in God's response as Psalm 138:3.

Psalm 6:9 declares that the Lord has heard the plea — identical theme of answered prayer as in Psalm 138:3.

Psalm 73:26 declares God as the strength of the heart — directly parallel to the 'strength of soul' God increases in Psalm 138:3.

Psalm 77:2 describes seeking the Lord in trouble without receiving comfort, contrasting with the immediate answer and increased strength in this verse.

Psalm 86:16 asks God to give strength to his servant — the same request for strengthening that Psalm 138:3 says God answered.

Psalm 27:14 commands waiting for the Lord, contrasting with the immediate answer and strengthening received here on the day of calling.

Psalm 31:24 calls for strength and courage in waiting on God — reflecting the outcome of strengthened soul in Psalm 138:3.

Psalm 77:1 also shows crying to God for a hearing, but the context of complaint there contrasts with the answered prayer and strengthened soul here.

Psalm 38:15 expresses trust that the Lord will answer — the same confidence in God's response as in Psalm 138:3.

Ephesians 3:16 prays for strengthening with power through the Spirit in the inner being — the same concept as David's 'strength of soul' increased by God.

Philippians 4:13 declares 'I can do all things through him who strengthens me' — a direct verbal parallel to David's testimony of God increasing his strength.

Isaiah 65:24 intensifies this: God answers even before calling, while here the answer comes on the day of calling.

Isaiah 41:10 assures that God will strengthen and uphold, matching the strengthening action experienced in this verse.

Isaiah 40:29-31 promises that God increases strength to the faint, directly paralleling the strength of soul increased here.

Isaiah 12:2 declares that the Lord is strength and song, echoing the source of the increased strength received in this psalm.

Colossians 1:11 describes being strengthened with all power according to God's glorious might — a close parallel to the soul-strengthening David received.

Daniel 10:19 shows Daniel being strengthened by God's messenger after prayer — mirroring David's experience of divine empowerment.

1 Samuel 17:37 shows David recalling God's past deliverance — the same God who answers and strengthens in Psalm 138:3.

Nehemiah 6:9 records Nehemiah's prayer for strength amid opposition — mirroring the cry for strengthening that God answers in Psalm 138:3.

2 Corinthians 12:8-10 shows God's answer as strength through weakness — a contrast to the direct strengthening David received when he called.

Ephesians 6:10 commands believers to be strong in the Lord's might — an exhortation that matches the experience of God-given strength David testifies to.

Zechariah 10:12 promises a corporate strengthening in the LORD, echoing the personal strengthening David experienced when he called on God.

Job 23:6 expresses hope that God would listen — echoing the confidence in Psalm 138:3 that God answers when called.

1 Peter 5:10 promises that God will strengthen, confirm, and establish after suffering — a future-oriented parallel to the immediate strengthening David received when he called.