1 Samuel 26:12
So David took the spear and the cruse of water from Saul’s bolster; and they gat them away, and no man saw it, nor knew it, neither awaked: for they were all asleep; because a deep sleep from the Lord was fallen upon them.
Cross-reference
1 Samuel 24:4
Parallel
In 1 Samuel 24:4, David similarly spares Saul by cutting his robe — both show David's restraint when given the chance to harm God's anointed.
Psalm 76:6
Parallel
In Psalm 76:6, God causes warriors to fall asleep in battle; here God sends a deep sleep on Saul's army — both show God incapacitating enemies.
Isaiah 29:10
Parallel
In Isaiah 29:10, God gives a spirit of deep sleep as judgment; here God sends a deep sleep on Saul's camp to protect David — similar divine action with different purposes.