How can a person know they are saved?

 
The question here is, “Hw can a person know they are truly ready for heaven”- that they truly possess salvation for their sins? God saves a person, not by taking the old person and making him or her better through a combination of religious rituals, traditions and guidelines, but by supernaturally imparting a whole new nature into a person when the Holy Spirit comes to dwell in them at the moment of salvation: “The Spirit itself beareth witness with our spirit, that we are the children of God” [Romans 8:16].
 
Ask yourself the following questions to see if you bear the fruit and marks of a true Christian, a true child of God:
 
A. Have I come to a realization that in God’s eyes, there is no good thing in me – that is, I have nothing to offer God for my salvation except my sins? … “For our transgressions are multiplied before thee, and our sins testify against us” [Isaiah 59:12]
 
B. Do I realize that I owe Jesus everything for my salvation – there is nothing I could contribute to it? – “Not by works of righteousness which we have done, but according to his mercy he saved us” [Titus 3:5]
 
C. Has my attitude about sin changed? Do I now hate the sins I used to love and love the things of God I used to hate? – “if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new” [2 Corinthians 5:17]
 
D. Do I understand that ALL people are lost without Christ and do I show my concern for the souls of others by warning people to flee God’s wrath in hell? – “we are ambassadors for Christ, as though God did beseech you by us: we pray you in Christ’s stead, be ye reconciled to God.” [2 Corinthians 5:20]
 
E. Do I enjoy talking about how Jesus changed my life and saved me from Hell? – “Go home to thy friends, and tell them how great things the Lord hath done for thee” [Mark 5:19]
 
F. Do people make fun of me or in some other way persecute me for standing up for Jesus Christ? – “all that will live godly in Christ Jesus shall suffer persecution.” [2 Timothy 3:12]
 
G. Do I realize that I am here on earth to serve God and to get ready to spend eternity with Him? – “present your bodies a living sacrifice, holy, acceptable unto God” [Romans 12:1]
 
H. Do I fellowship with other Bible-believing Christians on a regular basis and do I consider it a matter of necessity for my spiritual health? – “let us consider one another to provoke unto love and to good works: Not forsaking the assembling of ourselves together” [Hebrews 10:24-25]
 
I. Do I realize that God is very holy and that I must strive to live a life of holiness? “Because it is written, Be ye holy; for I am holy.” [1 Peter 1:16].
 
J. Do I love to read the Bible daily to find out more about God and how He expects me to live? – “I will delight myself in thy statutes: I will not forget thy word.” [Psalm 119:16]
 
K. Is my conversation different than before I was saved? Do I think and talk more about God and less about the things that the unsaved are so preoccupied with? – “Set your affection on things above, not on things on the earth.” [Colossians 3:2]
 
You may wonder ‘How is it possible for anyone to think and act like the kind of Christian described above?’. That’s the whole point! No one is born in this condition. Only God can change a person’s nature which is why Jesus said: “Except a man be born again, he cannot see the kingdom of God.” [John 3:3].