How do we know the promise of rest in Christ is true?

The promise of rest is grounded in the authority of Jesus' identity and mission, as seen in Matthew 11:27, where He states that all things are delivered to Him by the Father. It is through Jesus' divine authority that He invites those laboring under the burden of sin to come to Him for rest. The fulfillment of this promise is also demonstrated in the transformative work of the Holy Spirit in the hearts of believers, leading them to faith in Christ. As they come to Him, they experience spiritual rest, affirming the truth of His promise.