Mark 2:18-20

Young's Literal Translation

¹⁸ And the disciples of John and those of the Pharisees were fasting, and they come and say to him, `Wherefore do the disciples of John and those of the Pharisees fast, and thy disciples do not fast?'

¹⁹ And Jesus said to them, `Are the sons of the bride-chamber able, while the bridegroom is with them, to fast? so long time as they have the bridegroom with them they are not able to fast;

²⁰ but days shall come when the bridegroom may be taken from them, and then they shall fast -- in those days.