His absolute grace is that means whereby his children are made free. It is the Sovereign grace of GOD in Christ having chosen certain unworthy sinners to a full and free salvation.
Grace is no doubt the source and cause of our salvation.
Nothing in us could have moved GOD toward us in love and in mercy saving His sheer Grace. GOD almighty was totally free to leave all of us in our sin and misery, and to cast us away as reprobate. And if you are a stranger to grace you will surely pay. If you despise His grace , His SON, His redemption, His Salvation, you are a stranger and you must pay, only the children are free. Chosen in His Son, from before the foundation of the world.