Only by the Spirit of God cane you come to Jesus

(John 6 : 44 - 45 ; ) No man can come to me , except the father which hath sent me draw him : and I will raised him up at the last day. 45. It is written in the prophets, and they shall be all taught of God . Every man therefore that hath heard , and learned of the father, cometh unto me. ) A man can't come to God when he wishes , the Spirit of God must draws him. When a person has heard God's word , the Holy Spirit then convicts , then it is up to them whether they want to accept him or reject him. The Holy Spirit may continue to do this as long as he choses . Or then the Holy Spirit may get tired , and then leave you and may not come again, this is what you call grieving the Holy Spirit. This is why Jesus said you can't come unto him unless the Father draws him.