How can we be assured that we are truly sons of God?

The assurance that we are sons of God is grounded in our faith and trust in Jesus Christ. John 1:12 tells us that to those who received Him, He gave the right to become children of God. This indicates that belief is central to our identity as sons. In times of doubt, we can examine our trust in Christ and His sacrifice for us, understanding that true belief leads to the Spirit's witness in our hearts (Romans 8:16). Our assurance grows as we rely on God's promises and His faithfulness rather than our performance, knowing that He has made us His sons through grace.