Mark 11:26

Overview - Mark 11
1	Christ rides with triumph into Jerusalem;
12	curses the fruitless fig-tree;
15	purges the temple;
20	exhorts his disciples to stedfastness of faith, and to forgive their enemies;
27	and defends the lawfulness of his actions by the witness of John, who was a man sent of God.

Mark 11:26  (King James Version)
But if ye do not forgive, neither will your Father which is in heaven forgive your trespasses.