'Lack' in the Bible

And He did not do many miracles there [in Nazareth] because of their unbelief.

He answered, “Because of your little faith [your lack of trust and confidence in the power of God]; for I assure you and most solemnly say to you, if you have [living] faith the size of a mustard seed, you will say to this mountain, ‘Move from here to there,’ and [if it is God’s will] it will move; and nothing will be impossible for you.

The young man said to Him, “I have kept all these things [from my youth]; what do I still lack?”