It's wonderful to have the full assurance of salvation, and it is God’s will that every one of us enjoy this assurance. Such security permits believers to live securely in rest and peace.

Toward the close of his life the Apostle John wrote these words. “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…” (I John 5:13).

It is not only possible to KNOW we are saved and we are secure in Christ; its God's desire that we have UNDERSTANDING of what the Lord has done for us, and so He has provided His Word and His Spirit to ENLIGHTEN us.

There are three Biblical items upon which believers in Christ may enjoy the "full assurance of salvation."

1) God urges every true believer: “Let us draw near, with a sincere heart, in full assurance of faith…” (Heb. 10:22). This is the full assurance that results from simply believing God; much as a child implicitly believes what his father has said and is absolutely sure that it is true. God says: “He that believeth on the Son hath everlasting life” (John 3:36). We may simply — and with good reason — believe His Word and enjoy the full assurance of faith.

2) We may enjoy what Heb. 6:11 calls “the full assurance of hope.” The hope of the Bible, however, must not be confused with wishing. The Christian’s “hope” is “an anchor of the soul, both sure and stedfast” (Ver. 19). This comes to believers through having proved God by their own experience of trusting Him. Thus the full assurance of hope is the confidence that results from having accepted God’s Word.

3) In Col. 2:2 Paul writes of “the riches of the full assurance of understanding.” This full assurance of understanding is God’s reward to Christians who study His Word and His purposes, beginning with His plan of salvation as revealed in Paul's “the gospel of the grace of God.” (Act 20:24).

When one not only believes God’s Word, but begins to understand it he cannot but be gripped by its awe-inspiring reasonableness, its powerful logic, and its provision for his deepest needs; thus such a one has come to enjoy “all [the] riches of the full assurance of understanding.”