'Shield' in the Bible

Mountains of Gilboa! No dew nor rain be on you, And fields of heave-offerings! For there hath become loathsome The shield of the mighty, The shield of Saul -- without the anointed with oil.

My God is my rock -- I take refuge in Him; My shield, and the horn of my salvation, My high tower, and my refuge! My Saviour, from violence Thou savest me!

God! Perfect is His way, The saying of Jehovah is tried, A shield He is to all those trusting in Him.

And Thou givest to me the shield of Thy salvation, And Thy lowliness maketh me great.