Luke 11:21
When a strong man armed keepeth his palace, his goods are in peace:
Cross-reference
Matthew 12:29 gives the same parable with the detail of tying the strong man—synoptic parallel.
Mark 3:27 is another parallel account of the same saying about plundering the strong man.
Isaiah 49:24 asks if plunder can be taken from warriors; here the stronger one plunders the strong man—OT background of divine rescue.
Jeremiah 31:11 says God redeems from a stronger hand—echoing the deliverance Jesus brings, contrasting the strong man's false security.
Matthew 12:44 describes an unclean spirit returning to an empty house—parallel to the 'palace' metaphor, showing vulnerability after the strong man is removed.
Acts 26:18 speaks of turning from Satan's power to God—directly connects to the strong man (Satan) overcome by Jesus, the stronger man.
Ephesians 2:2 identifies the prince of the power of the air—clarifies that the strong man is Satan, ruler of darkness.
2 Timothy 2:26 says people are captured by the devil—shows that the strong man's 'goods' are people ensnared by Satan.