Psalm 59:17

O my strength, to you I will give praise, because God [is] my [high] stronghold, my God of loyal love.

Psalm 59:9-10

O my strength, I will watch for you, because [you], O God, [are] my (high) stronghold.

Psalm 18:1

And he said: "I love you, O Yahweh, my strength."

Psalm 46:1

God [is] our refuge and strength, a very sufficient help in troubles.

Treasury of Scripture Knowledge

Summary

Unto thee, O my strength, will I sing: for God is my defence, and the God of my mercy.

Bible References

O my

Psalm 18:1
And he said: "I love you, O Yahweh, my strength."
Psalm 46:1
God [is] our refuge and strength, a very sufficient help in troubles.

For

Psalm 59:9
O my strength, I will watch for you, because [you], O God, [are] my (high) stronghold.