Verses with the word strengthen in the Apocrypha (4 verses):

1 Esdras 7:15
For that he had turned the counsel of the king of Assyria toward them, to strengthen their hands in the works of the Lord God of Israel.

Judith 13:7
And approached to his bed, and took hold of the hair of his head, and said, Strengthen me, O Lord God of Israel, this day.

1 Maccabees 9:50
Afterward returned Bacchides to Jerusalem and repaired the strong cites in Judea; the fort in Jericho, and Emmaus, and Bethhoron, and Bethel, and Thamnatha, Pharathoni, and Taphon, these did he strengthen with high walls, with gates and with bars.

1 Maccabees 10:23
What have we done, that Alexander hath prevented us in making amity with the Jews to strengthen himself?