God is no respector of persons. Man must choose for himself whom he will serve, Jehovah God or false gods. Elijah called for a decision between the two sides. Obedience is from our own mind and heart. God's Atonement was sufficient for all, but efficient only for the elect.
Grace is sufficient.
All sufficiency in all things. Christ died for the ungodly. One died for all . . . Judas did fall. You may fall.