Perseverance is the key virtue in the Christian Life because without it, one has no guarantee of a future inheritance with God in heaven. The Scriptures give us guarantees like, “He who began a good work in you will carry it on to completion until the day of Christ Jesus” (Php 1:6) and at the same time they give us strong exhortations like, “continue to work out your salvation with fear and trembling, for it is God who works in you to will and to act according to his good purpose” (Php. 2:12-13). In the Parable of the Sower, Jesus teaches us that only one of the categories of hearers bears fruit and perseveres. All the others are eventually swallowed up and destroyed by malignant influences which militate against Christian perseverance. There are also many warnings in the New Testament about falling away (Cf. Hebrews 6:1-12, etc.). Does a person have a carte blanche (blank check) once he professes faith in Christ? Can he do anything he wants while maintaining blessed assurance in a secure salvation? In his book, The Christian Life, Sinclair Ferguson puts this in perspective,
“Perseverance and faith, therefore, or perseverance and the Christian’s duty to battle on in the fight of faith are never separated and polarized in the Bible. It is never a case of ‘either/or’ always one of ‘both/and.’ In fact we persevere through faith and never apart from it. The picture is one of a dynamic, living trust in a God who actively holds on to us so that we may persevere. There is no blanket guarantee of perseverance. There is no mere doctrine of ‘the security’ of the believer, as though God’s keeping of us took place irrespective of the lives we live. Indeed there is not such thing in the New Testament as a believer whose perseverance is so guaranteed that he can afford to ignore the warning notes which are sounded so frequently.”
While we remain in the fight of faith to persevere the Christian can take great comfort and courage from his Good Shepherd who says, “My sheep hear my voice, and I know them, and they follow me. I give them eternal life, and they will never perish, and no one will snatch them out of my hand. My Father, who has given them to me, is greater than all, and no one is able to snatch them out of the Father’s hand. I and the Father are one.” (John 10:27-30)
While our adversary the devil is a formidable foe who will use any allowable means necessary to opportunistically attack faith in the most vulnerable moments of life, take heart because Jesus prays for you! Jesus sought to prepare Simon Peter for the imminent moment of the Shepherd being snatched away, “Simon, Simon, behold, Satan demanded to have you, that he might sift you like wheat but I have prayed for you that your faith may not fail. And when you have turned again, strengthen your brothers.” Take courage because Jesus’ intercession is the guarantee that your faith, though shaken will not fail. When Jesus says, “I’ll pray for you” this is not the meaningless human resignation uttered when we don’t know what else to say or do for a struggling friend as if to say, “I pity you, good luck with all that!” Unlike my prayers, when Jesus prays, All of His Prayers are Answered, YES! So Christ guarantees victory for Peter, the Disciples and all who believe. The prayers of Jesus give us assurance that God’s grace will be victorious. Paul reminds us in Romans 8,
Who shall bring any charge against God’s elect? It is God who justifies. Who is to condemn? Christ Jesus is the one who died—more than that, who was raised— who is at the right hand of God, who indeed is interceding for us. …nothing will be able to separate us from the love of God in Christ Jesus our Lord.
Because you are among the elect, Jesus has been condemned for you and the Father has Justified you through the righteousness of His Son. This Son is risen and now sits at the right hand of the Father always praying for you as your great sympathetic high priest. Because He always has the Father’s ear and His prayers are always answered, YES, you will be a conqueror! Even more than that! Your faith will persevere to the end and you will always BE LOVED! And not only that but through the process of having your faith sifted coupled with Jesus prayers for your perseverance, when (not if) you turn back to Him you will become stronger so that you may help strengthen others.