that is absolutely not the case. As Paul has said, what then? shall we sin more that grace may more abound? God forbid! Romans 6:1-2
and in the letter to the Hebrews
[26] For
if we sin willfully after having the knowledge of the truth, there is now left no sacrifice for sins,
[27] But a certain dreadful expectation of judgment, and the rage of a fire which shall consume the adversaries.
Jesus said in the Gospel of Matthew:
[21] Not every one that saith to me, Lord, Lord, shall enter into the kingdom of heaven: but he that doth the will of my Father who is in heaven, he shall enter into the kingdom of heaven.
[22] Many will say to me in that day: Lord, Lord, have not we prophesied in thy name, and cast out devils in thy name, and done many miracles in thy name?
[23] And then will I profess unto them, I never knew you: depart from me, you that work iniquity.
[24] Every one therefore that heareth these my words, and doth them, shall be likened to a wise man that built his house upon a rock,
[25] And the rain fell, and the floods came, and the winds blew, and they beat upon that house, and it fell not, for it was founded on a rock.
[26] And every one that heareth these my words, and doth them not, shall be like a foolish man that built his house upon the sand,
[27] And the rain fell, and the floods came, and the winds blew, and they beat upon that house, and it fell, and great was the fall thereof.
You cannot ask God to get into heaven and stay in your sins. You must ask God to cleanse you of your sin, so that you can get into heaven. The call is to repent and believe the Gospel, not believe in Jesus and sin all you want