It is only in proportion as the Christian manifests the fruit of a genuine conversion that he is entitled to regard himself and be regarded by others as one of the called and elect of God. It is just in proportion as we add to our faith the other Christian graces that we have solid ground on which to rest in the assurance we belong to the family of Christ.
[A.W. Pink]
Romans 8:14 ... For as many as are led by the Spirit of God, they are the sons of God.
Matthew 7:16-17 ... Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles? Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit.
Matthew 18:3 ... And said, Verily I say unto you, Except ye be converted, and become as little children, ye shall not enter into the kingdom of heaven.❤