In Heaven, there will be Calvinists, Augustinians, Wesleyans, a few Arminians, and maybe even one or even two Pelagians. I will not say that your view of grace is an essential in getting you into Heaven.
But, my brothers and sisters in Christ, your view of grace is an essential in how you approach getting OTHERS into Heaven. The Arminian beliefs of decisional regeneration and lordship salvation are outright heresy. They have installed works into salvation, provided an avenue for boasting, and will indeed result in multitudes knocking on the door to the Bema Seat and instead of being welcomed in, will be directed to the Great White Throne for judgment.
Salvation is by grace through faith. This faith is granted by God, it comes by hearing. God draws, Christ paid the price, the Holy Spirit justifies and sanctifies. There is no room for the sinner to do anything other than be saved. The Spirit will convict him of his sin, his pride will be killed through the Word, and the Spirit will grant him life. God given repentance will follow.
The most vilified person in history is the High Calvinist, the hatred against him is only slightly less than the hatred against Christ and considerably more than the hatred directed at the Accuser. Oh how the world, the American church, and the free-willers hate this godly man. Why? Because his trust is based too greatly in his God.
But, here I am to defend him who trusts too heavily in God. Saints, the most damning view of grace which forsakes the God given command to seek and save that which is lost is the HyperArminian; the overly tolerant deceiver who thinks that anyone can seek God on their own. He is the dumb dog who sees the danger but remains silent; the blind watchman who cares not for souls and will not remove his blindfold. Beloved, there is none that seeks after God; we like sheep have all turned aside after our own lusts. The HyperArminian sits on his porch boasting in his decision, content that his faith was his own doing and that his neighbor will eventually realize his need for a Saviour and find God if he keeps asking those girls down at the strip-club.
Tolerance is a cancer. There has never been a greater heresy to infect Christianity. Catholicism, Atheism, Evolution have nothing on the numbers of souls that tolerance has murdered. Your neighbor is a heathen, he will not seek God, how will he hear without a preacher?
Before you curse the High Calvinists who defend God, look at the plank in your own eye and remember what the Psalmist said, It is better to trust in the LORD than to put confidence in man.
Beloved, if faith comes by hearing, who have you told?