Psalm 121:3
He will not suffer thy foot to be moved: he that keepeth thee will not slumber.
Cross-reference
Psalm 91:12 promises angelic protection so your foot won't strike a stone — parallel to God keeping your foot from slipping in the psalm.
Psalm 17:5 affirms 'my feet have not slipped'—a personal claim that matches the promise in this psalm.
Psalm 37:23 says the Lord establishes a man's steps—this is the cause behind the effect of not being moved.
Psalm 37:31 directly states 'his steps do not slip'—the same outcome promised to the righteous.
Psalm 55:22 promises God 'will never permit the righteous to be moved'—a direct parallel to not letting your foot slip.
Psalm 66:9 uses the same 'not allow feet to slip' as a testimony of God's sustaining power in deliverance.
Psalm 94:18 shows God's unfailing love supporting when the foot slips—a personal echo of the same rescue.
Psalm 127:1 emphasizes God's watchful protection over city and house—parallel to the guardian who never slumbers.
1 Samuel 2:9 says God guards the feet of his faithful servants — same imagery as 'He will not let your foot slip' in the psalm.
Proverbs 3:23 echoes this promise with 'your foot will not stumble'—directly reinforcing the security of the believer's steps.
Proverbs 3:26 adds that the Lord keeps your foot from being caught—expanding the same image of divinely prevented slipping.
2 Samuel 22:37 gives David's testimony: 'my feet did not slip'—the same promised stability from the Lord.
Isaiah 27:3 has God guarding His vineyard day and night—a strong parallel to the watcher who never sleeps.
2 Peter 1:10 promises no stumbling for those who confirm their calling—a moral application of the 'not slipping' metaphor.