What is "o my god"

Usage examples of "o my god".

Blessed be Thou, O my God, because though I be unworthy of all Thy benefits, Thy bountiful and infinite goodness never ceaseth to do good even to ingrates and to those who are turned far from Thee.

What then shall I do, O my God, Thou helper and Counsellor in necessities.

Let not, O my God, let not flesh and blood prevail over me, let not the world and its short glory deceive me, let not the devil and his craftiness supplant me.

Hence it is, O my God, that I delight in Thy law after the inward man,(1) knowing that Thy commandment is holy and just and good.

Thou, O God, art my witness that nothing is able to comfort me, no creature is able to give me rest, save Thou, O my God, whom I desire to contemplate everlastingly.

Remember me, O my God, and lead me by the right way unto Thy Kingdom.