2 Samuel 22:33
God is my strength and power: and he maketh my way perfect.
Cross-reference
Exodus 15:2 similarly calls the Lord 'my strength' in a song of deliverance — the same confession of God as strength.
Psalm 18:32 is nearly identical: 'God arms me with strength and makes my way perfect'.
Hebrews 13:21 asks God to 'make you perfect' in every good work — parallel to God making David's way perfect.
In 1 Samuel 17:45, David shows this same reliance on God's strength against Goliath, coming in the Lord's name rather than with weapons.
Psalm 101:2 has David vowing to walk in a perfect way — the same phrase links to God making his way perfect in 2 Samuel 22:33.
In 2 Corinthians 12:9, Paul learns God's strength is perfected in weakness — a different angle on God's power making David's way perfect.
Deuteronomy 18:13 commands Israel to be perfect with God — human responsibility, while David credits God for making his way perfect.
Psalm 101:6 describes those who walk in a perfect way serving the king — echoing the 'perfect way' language from 2 Samuel 22:33.
Philippians 4:13 declares strength through Christ for all things — a New Testament application of God as the believer's strength.