John Gill Commentary Mark 3:27

"But no one can enter into the house of the strong [man], and spoil his goods, except he first bind the strong [man]; and then he will spoil his house." — Mark 3:27 (ASV)

No man can enter into a strong man's house
This is properly a parable; the other seem to be proverbs, or sayings, that were commonly used to show the ill consequences of discords, factions, and divisions, as is explained in the note on (See Gill on Matthew 12:29).