Why is it essential for Christians to rest in Christ?

Resting in Christ encompasses the entirety of a believer's relationship with God. It illustrates our understanding that salvation is by grace through faith, as stated in Ephesians 2:8-9. By resting in Christ, we acknowledge that all our efforts are insufficient for salvation and that He has completed all that was necessary for our redemption. This rest is both a comfort in today’s struggles and a confident assurance of our future hope. It also liberates us from the bondage of self-righteousness, empowering us to live resulting from His grace, producing good works in our lives.