God Heals when we do His will

I had a very bad fall about 4-5 years back while playing futsal and I damaged my knees. After that fall, I couldn’t bend my knees fully and had difficulty standing and squatting for long. The doctor advise me to completely stop playing futsal or I might need a knee replacement. During a session at KOGSC, as the pastors were asking us to pray for a member for healing of his leg, I felt my knees being healed and now, I can bend my knees without any difficulties