What does the Bible say about the power of God to heal?

In Luke 5:16-17, we see that Jesus withdrew to pray, and while He was teaching, the power of the Lord was present to heal the sick. This power wasn't just limited to physical healing but also addressed the spiritual need of individuals, emphasizing faith and the necessity of hearing the Word of God to receive healing. The multitudes who pressed to hear Jesus demonstrate the pressing nature of spiritual need among believers and non-believers alike. They came to hear the Gospel, which is referred to as the power of God unto salvation (Romans 1:16).