20 And he judged Israel in the days of the Philistines twenty years.
Judges 15:20 Cross References - TKJU
Judges 13:1
1 And the children of Israel did evil again in the sight of the LORD; and the LORD delivered them into the hand of the Philistines forty years.
Judges 13:5
5 For lo, you shall conceive, and bear a son; and no razor shall come on his head: For the child shall be a Nazarite to God from the womb: And he shall begin to deliver Israel out of the hand of the Philistines.
Judges 16:31
31 Then his brothers and all the house of his father came down, and took him, and brought him up, and buried him between Zorah and Eshtaol in the burial site of Manoah his father.  And he judged Israel twenty years.
Hebrews 11:32
32 And what more shall I say?  For the time would fail me to tell of Gideon, and Barak, and Samson, and Jephthah; also of David, and Samuel, and the prophets: