What does 'rest' mean in a Christian's life?

In a Christian's life, 'rest' refers to a state of spiritual peace and assurance that comes from trusting in the finished work of Christ. The sermon emphasizes that because Christ has completed the redemptive work through His death and resurrection, believers can stop striving for righteousness and simply rest in His grace (Hebrews 4:9-11). This rest is not passive; rather, it is an active faith that relies on Christ alone for salvation and sustenance. When we understand that our salvation is wholly dependent on His work and not our own efforts, we can experience true rest in our souls, knowing that God has fulfilled His promises to us.