'Shield' in the Bible

You mountains of Gilboa, let there be no dew nor rain on you, neither fields of offerings; For there the shield of the mighty was vilely cast away, The shield of Saul was not anointed with oil.

God, my rock, in him I will take refuge; my shield, and the horn of my salvation, my high tower, and my refuge. My savior, you save me from violence.

As for God, his way is perfect. The word of Yahweh is tested. He is a shield to all those who take refuge in him.

You have also given me the shield of your salvation. Your gentleness has made me great.