Assurance – "Firm persuasion; full confidence or trust; freedom from doubt." The Bible teaches that we can have the assurance of salvation. There are two basic ways the New Testament teaches that we can experience security or assurance. The first way is "pure doctrine.", which is knowing that our doctrine is right. True assurance comes only to those who abide in the true biblical doctrine of Christ. If you’ve got a wrong view of Jesus Christ, you’re not going to have security in salvation. Internal assurance comes when there is no deviation in our doctrine, when we affirm the Christ of the gospel and the gospel of Christ. The first way to have assurance of salvation is "pure doctrine." The second way is "pure living." Pure living is the key to experiencing assurance in your salvation. To have assurance of salvation, you must look at your life and you must see a pattern of holy living, because if there is anything that salvation teaches, it teaches you to deny ungodliness and worldly living. If you look at your life and you see nothing but garbage and corruption, ungodliness and sin, you will never be able to conclude that you are really saved. To have the assurance of salvation you must have "pure doctrine" and "pure living", otherwise the Holy Spirit of God will remove the assurance of salvation and doubt will rule in your heart. (I. John 5:13), "These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God."