"Again, I say to you that if two of you agree on earth concerning anything that they ask, it will be done for them by My Father in Heaven." Matthew 18:19

And when they had come to the multitude, a man came to Him kneeling down to Him and saying, "Lord, have mercy on my son, for he is an epileptic and suffers severely; for he often falls into the fire and often into the water. "So I brought him to Your disciples, but they could not cure him." Matthew 17:14-16

When Jesus came into the region of Caesarea Philippi, He asked His disciples, saying, "Who do men say that I the Son of Man am?" Matthew 16:13

And behold, a woman of Canaan (a Gentile) came from that region and cried out to Him, saying, "Have mercy on me, O Lord, Son of David! My daughter is severely demon-possessed."  Matthew 15:22

Jesus called His disciples to Himself and said, "I have compassion on the multitude because they have now continued with Me three days and have nothing to eat. And I do not want to send them away hungry, lest they faint on the way." Matthew 15:32