Verses 15-20 contrary to what some have preached is not about men and women who call themselves Christian, but continue to sin. It is about false prophets, who come to you in sheep’s clothing, but inwardly are ravenous wolves. Jesus said in verse 21 “Not everyone who says to Me, ‘Lord, Lord,’ will enter the kingdom of heaven, but he who does the will of My Father who is in heaven will enter.” Therefore, the question that one should ask; what is the will of the Father?
The Jews wanted to know what they could do to do the works of God. This is the same question that everyone asks who wants to be made right before God on their own terms. “Jesus answered and said to them, ‘This is the work of God, that you believe in Him whom He has sent.” (Jo.6.29) The wolf learned many years ago that the Lordship of Christ Jesus could not be denied, but if he could convince man that he remains on a conditional footing as his father Adam was, and Israel was; then he could prevent him from looking to Jesus alone as both Lord and savior. What is the will of the Father? Jesus said; “For I have come down from heaven, not to do My own will, but the will of Him who sent Me. This is the will of Him who sent Me, that of all that He has given Me I lose nothing, but raise it up on the last day. For this is the will of My Father, that everyone who beholds the Son and believes in Him will have eternal life, and I Myself will raise him up on the last day." (Jo.6.38-40)
“Not everyone who says to Me, ‘Lord, Lord’, will enter the kingdom of heaven, but he who does the will of My Father who is in heaven will enter.” (Mat.7.21). Do you want to be right before God? Do you want to enter the kingdom of heaven? Then do the will of the Father; look unto Jesus alone, believe in Him! Yes, it is that simple; behold the Son and believe in Him. “As Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up; so that whoever believes will in Him have eternal life.” (Jo.3.14)
The Christians footing is sure, he does not walk on unstable ground. Adam walked on a conditional footing; “The LORD God commanded the man, saying, ‘From any tree of the garden you may eat freely; but from the tree of the knowledge of good and evil you shall not eat, for in the day that you eat from it you will surely die.” (Gen.2.16-17) Israel walked on a conditional footing; if they kept the law God would bless them, if they broke the law God would curse them (see Deuteronomy 30). The Christian, the one who beholds the Son and believes in him walks on an unconditional footing; he is not under law but is under grace.
“What shall we say then? Are we to continue in sin so that grace may increase?” (Rom.6.1) “What then? Shall we sin because we are not under law but under grace?” (Rom6.15) In all accounts may it never be; the Christians life is one of thanksgiving to God in Christ Jesus for what He has done for him. The Christian is not in any way under a conditional footing; he is not under law he is under grace, you cannot break that which you are not bond too. The Christian's standing is one who is sinless, he is not under law but under grace, because of this the believer lives a life of thanksgiving toward God in Christ Jesus for what He alone did for him. "Or do you not know, brethren (for I am speaking to those who know the law), that the law has jurisdiction over a person as long as he lives?....."But now we have been released from the Law, having died to that by which we were bound, so that we serve in newness of the Spirit and not in oldness of the letter." (Rom.7.1.&.6)
“Now if we have died with Christ, we believe that we shall also live with Him, knowing that Christ, having been raised from the dead, is never to die again; death no longer is master over Him. For the death that He died, He died to sin once for all; but the life that He lives, He lives to God. Even so consider yourselves to be dead to sin, but alive to God in Christ Jesus.” (Rom.6.8-11)
Faith in Jesus alone is the narrow way, Jesus said; “I am the way, and the truth, and the life; no one comes to the Father but through Me.” (Jo.14.6)
A slave of Jesus Christ
(All quotations NASB, parenthesis mine)