I am going to cut to the chase, because in all reality it does not matter if you believe what you believe, as long as it doesn't keep you out of the kingdom; if your belief gives you an excuse to never receive Christ as your Saviour and Lord, if it tells you that it is not necessary to call upon the name of the Lord; and if you have never called upon the name of the Lord: if your belief tells you that you are saved apart from placing your faith in Jesus Christ in the sense of putting the key to the lock of the door and opening it to enter into becoming a recipient of true grace of salvation; then know that your faith in Calvinism is preventing you from being saved and entering the kingdom: and if you are saved but are a preacher of Calvinism, then know that your preaching will keep people out of the kingdom, because they will believe that they are not responsible to receive Jesus as their Lord and Saviour; because of the doctrine that they can have grace apart from that (since, in Calvinism, grace comes before faith, a man can be saved by grace apart from faith; and therefore faith isn't necessary for salvation by implication). And if you are keeping people out of the kingdom, how in the justice of the Lord will you be able to enter into the kingdom yourselves?
But I am going to give the Calvinist an invitation here to repent and place their faith in Jesus Christ, entering the door using the key; and if they choose not to enter in because they believe in Calvinism, then I suggest that the Lord foreordained that they would be condemned over not rejecting Calvinism when it mattered most to their salvation.
But here is the invitation: the Lord Jesus stands at the door and knocks on the door of your heart; He says to you that if you will hear His voice and open the door, He will come in to you and sup with you and you with Him: He is offering to come into your life and live His life in you and through you so that you can be morally unashamed: it will be Christ in you, the hope of glory if you accept the call and receive Him into your heart today. He will also make you a new creature in Him and you will be regenerated and renewed, and the Lord will take out of you the heart of stone and replace it with an heart of flesh.
Pray the prayer below (out loud) to receive Jesus as your Lord and Saviour:
Jesus Christ of Nazareth, I call upon Your name for salvation. I ask You to come into my heart and be my Lord and Saviour. Show me who You are. Fill me with the Holy Ghost. Make me into a new creature in You. Save my soul from sin and set me free from the bondage of slavery to myself; and cause me to live according to Your love as I put my trust in You. Please wash me in Your blood and forgive me of all of my sin(s). I receive and confess You as my Saviour and Lord; and I believe that You are risen from the dead by the power of God. In Your holy and precious Name. Amen.
If you prayed that, the next step is for you to receive Acts 2:38 baptism so you can receive the Holy Ghost and absolute assurance of salvation.
Now if there are no takers among the Calvinists, I will suppose that it is because that in their total depravity they are opposed to the things of God and have utter inability to take the steps needed in order to enter into the kingdom. But if anyone actually takes the step of praying that and taking the subsequent steps to receive Acts 2:38 salvation, then I will know that it is a miracle of the Lord; that God truly reached out to them and bestowed upon them grace to receive salvation through faith and the obedience required to receive the Holy Ghost (see Acts of the Apostles 5:32).