Who redeemed Adam and Eve, following their poor effort at covering up?

Who spared Isaac as his father was poised to sacrifice him?

Exactly what works did the thief on the cross perform in order to end up with Christ in Paradise that day he was nailed to his cross as Jesus was to his?

The theme of this blog is to illustrate, from the Bible, how redemption does not originate from our works; but from God's redemptive nature.