How can we be sure we have eternal life?

According to John 5:24, Jesus tells us that whoever hears His word and believes in Him who sent Him has eternal life and will not be condemned, having passed from death to life. This assurance stems from the faithfulness of God in fulfilling His promises and the believer's identity in Christ. Romans 8:1 also confirms that there is no condemnation for those in Christ Jesus, reinforcing the certainty of salvation for those who trust Him. Eternal life is found in a personal relationship with Jesus built on faith, not works.