WSC Q20: The Covenant of Grace

Q. 20. Did God leave all mankind to perish in the estate of sin and misery?
A. God having, out of his mere good pleasure, from all eternity, elected some to everlasting life, did enter into a covenant of grace, to deliver them out of the estate of sin and misery, and to bring them into an estate of salvation by a redeemer.

Do you know what it means to say that it is by God's grace? It means that we did not contribute anything to our deliverance. It had to be by grace because we were too ruined to rescue ourselves.