Proverbs 2:11
"Discretion shall preserve thee, understanding shall keep thee:"
Cross References (ranked by relevance)
Proverbs 4:6
Forsake her not, and she shall preserve thee: love her, and she shall keep thee.
Ephesians 5:15
See then that ye walk circumspectly, not as fools, but as wise,
Psalm 25:21
Let integrity and uprightness preserve me; for I wait on thee.
Ecclesiastes 10:10
If the iron be blunt, and he do not whet the edge, then must he put to more strength: but wisdom is profitable to direct.