'Mercy' in the Bible

Unto thee, my strength, will I sing psalms; for God is my high fortress, the God of my mercy.

Thou wilt rise up, thou wilt have mercy upon Zion: for it is the time to be gracious to her, for the set time is come.

My mercy and my fortress, my high tower and my deliverer, my shield and he in whom I trust, who subdueth my people under me!