Therefore the world does not know us,
The word “know” means to know by experience of observation. Unbelievers did not understand Christ when He was among them. Neither can the world understand Christians when they observe them. The believer’s worldview is so distinct from the world that non-Christians cannot recognize their quality of life.
John 1:10 “He was in the world, and the world was made through Him, and the world did not know Him.”
John 14:16-17, 1 Cor. 2:14, 1 Cor. 1:18
The hope of Christ’s return is that when Christ returns He shall conform every believer to His image
John 5:24 "Most assuredly, I say to you, he who hears My word and believes in Him who sent Me has everlasting life, and shall not come into judgment, but has passed from death into life.
Immediately we are his children
We will be like Him - Phil. 3:20, 1Co 15:42-43
1 Cor. 15:49, 1 Cor. 15:51 “Behold, I tell you a mystery: We shall not all sleep, but we shall all be changed— 52 in a moment, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised incorruptible, and we shall be changed.”
2 Cor. 3:18 “But we all, with unveiled face, beholding as in a mirror the glory of the Lord, are being transformed into the same image from glory to glory, just as by the Spirit of the Lord.”
Living in the reality of Christ’s return makes a difference in a Christian’s behavior
Rom. 15:12 “And again, Isaiah says: ‘There shall be a root of Jesse; And He who shall rise to reign over the Gentiles, In Him the Gentiles shall hope.’”
1 Tim. 4:10 “For to this end we both labor and suffer reproach, because we trust in the living God, who is the Savior of all men, especially of those who believe.”
1 Tim. 5:5 “Now she who is really a widow, and left alone, trusts in God and continues in supplications and prayers night and day.”
Phil. 3:12 “Not that I have already attained, or am already perfected; but I press on, that I may lay hold of that for which Christ Jesus has also laid hold of me. 13 Brethren, I do not count myself to have apprehended; but one thing I do, forgetting those things which are behind and reaching forward to those things which are ahead, 14 I press toward the goal for the prize of the upward call of God in Christ Jesus.”
just as He is pure
The word “He” is emphatic – “Just as He Himself is pure.” How pure is Jesus? He is perfect purity. Jesus is free from any contamination of sin. Christ was infinitely and permanently holy in Himself as God but he maintained freedom from sin in His humanity.
Principle: Cleansing of sin is crucial for fellowship
2Cor. 7:1, 2Peter 3:18