Which biblical verse relates to the power of prayer for healing?

The verse from 1 John 5 is particularly relevant to the power of prayer for healing because it emphasizes the confidence believers have in approaching God with their requests. Specifically, 1 John 5:14-15 highlights that if we ask anything according to His will, He hears us. This underscores the belief that prayer is a direct line of communication with God, where believers can intercede for healing, not only on their behalf but also for others. This passage reassures the faithful that their prayers can lead to divine intervention and healing when aligned with God's will, reinforcing the powerful role of faith in the healing process.

In contrast, the other options do not center specifically on the theme of prayer for healing. Matthew 8 describes Jesus’ physical healing miracles, showcasing His authority over illness, but it does not focus on the power of prayer itself. 1 Corinthians 13 discusses the characteristics of love, while Galatians 2 addresses issues of the early church and grace. Therefore, 1 John 5 stands out as the appropriate choice regarding the power of prayer for healing.