Matthew 18:19 (ASV 1901)
19Again I say unto you, that if two of you shall agree on earth as touching anything that they shall ask, it shall be done for them of my Father who is in heaven.
John 14:13–14 (ASV 1901)
13And whatsoever ye shall ask in my name, that will I do, that the Father may be glorified in the Son. 14If ye shall ask anything in my name, that will I do.
When Tesfai and Fitsum went for evangelism, they encountered a group of young people including Sam. Sam had an usual growth on his skin, he challenged the missionaries that if Jesus truly loved him and could heal then he should be healed. Tesfai and Fitsum prayed for Sam, believing in the promise of Jesus that "whenever two or three of His disciples are gathered in His name, He’s right there with them. And if we ask for anything in His name, God will grant it." The next day, Sam testified and showed everyone that he was healed.