‘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." Then Jesus answered and said, "O faithless and perverse generation, HOW LONG SHALL I BE WITH YOU? How long shall I bear with you? Bring him here to Me." And Jesus rebuked the demon, and it came out of him; and the child was cured from that very hour. Then the disciples came to Jesus privately and said, "Why could we not cast it out?" So Jesus said to them, "Because of your unbelief (or, little faith); for assuredly, I say to you, if you have faith as a mustard seed, you will say to this mountain, 'Move from here to there,' and it will move, and nothing will be impossible for you. However, this kind does not go out except by prayer and fasting." '(Matthew 17:14-21)
'Then the eleven disciples went away into Galilee, to the mountain which Jesus had appointed for them. When they saw Him, they worshiped Him; but some doubted. And Jesus came and spoke to them, saying, "All authority has been given to Me in heaven and on earth. Go therefore and make disciples of all the nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to OBSERVE ALL THINGS that I have commanded you; and lo, I AM WITH YOU ALWAYS, even to the end of the age." Amen.' (Matthew 28:16-20)
Jesus asks the faithless and perverse, 'How long will I be with you?' He instructs those who had 'little faith' how to move from where they were to a place where they could be fruitful. And, He informs the disciples who would follow Him there that He would be with them always, even to the end of the age. Faith brings to Him, follows Him, ultimately fellowshipping with Him, always!
