This is a false man made doctrine with no biblical support. In fact the bible tells us the opposite.
Hebrews 10:26 If we deliberately keep on sinning after we have received the knowledge of the truth, no sacrifice for sins is left,
Hebrews 10:27 but only a fearful expectation of judgment and of raging fire that will consume the enemies of God.
Luke 11:4 Forgive us our sins, for we also forgive everyone who sins against us. And lead us not into temptation.
Romans 6:1 What shall we say then? Are we to continue in sin so that grace may increase?
Galatians 5:4 You have been severed from Christ, you who are seeking to be justified by law; you have fallen from grace.
Matthew 7:22 Many will say to me on that day, 'Lord, Lord, did we not prophesy in your name, and in your name drive out demons and perform many miracles?
Matthew 7:23 Then I will tell them plainly, 'I never knew you. Away from me, you evildoers!
Mark 9:41 I tell you the truth, anyone who gives you a cup of water in my name because you belong to Christ will certainly not lose his reward