Verse 17 (continued): As John continues the invitation, he adds another dimension. He says, let the one who hears say come. In other words, those who respond to Gods invitation are to immediately turn around and invite others to join them. As soon as a person is converted, he or she is enlisted. Having heard the call, we then call others.
Verse 17 (continued): The universality of this invitation is unmistakable. The loving, welcoming heart of God shines through in the concluding statements of this verse, let the one who is thirsty come, let the one who wishes take the water of life without cost. Though He will certainly judge those who refuse by honoring their choice to enter an eternity of torment, it is not His desire that any should perish (2Pe 3:9; 1Ti 2:4). This fits exactly with the explanation Jesus gave in Johns gospel. He said, God so loved the world that He gave His only begotten Son, that whoever believes in Him shall not perish, but have eternal life (Jn 3:16).
Verse 17 (continued): Johns invitation reminds us of Isaiahs words, Ho! Everyone who thirsts, come to the waters, and you who have no money come, buy and eat. Later in the same chapter he restates this call in unmistakably plain terms. He says, Seek the Lord while He may be found, call upon Him while He is near. Let the wicked forsake his way and the unrighteous man his thoughts; and let him return to the Lord, and He will have compassion on him, and to our God for He will abundantly pardon (Isa 55:6, 7). Through the visions given to John God has provided an unparalleled glimpse into the spiritual battle for human hearts and the final destiny of those who belong to Christ and those who do not. Now we see His overall purpose. He is inviting unbelievers to come and encouraging believers to overcome.
Revelation 22:18, 19
Verses 18, 19: These verses reinforce Johns claim to have faithfully recorded the prophetic visions (see comments on verses 6, 8). He gives a chilling warning to anyone who would corrupt their clear meaning either by adding words to make them say something else or by discrediting them so that people will not heed their warnings. To distort or hide their clear meaning will cause people to stumble in their faith.
Revelation 22:18, 19
Verses 18, 19: There is an urgency to these prophecies. The information they contain is vital. They warn unbelievers of horrific dangers ahead if they do not repent, and they strengthen the resolve of believers who are being persecuted and/or tempted by the spirit of antichrist in any generationСespecially the last one. So anyone who deliberately denies this revelation to people will be held accountable by God. He will place them into that group Jesus categorizes as tares (Mt 13:40-42), stumbling blocks (Mt 18:6, 7), worthless slaves (Lk 19:22) or hypocrites (Mt 24:51). And they will be subject to the same sort of punishments (plagues) about which Jesus warns the churches in chapters two and three (Rev 2:5, 16, 22, 23; 3:3, 5, 15-19). Ultimately, if they dont repent, they will be denied access to the tree of life and the new Jerusalem. The severity of Johns words here not only serve as a warning but also as a validation that every word he wrote is from God.
Verse 20: In conclusion John quotes Jesus one final time identifying Him as He who testifies to these thingsЙ With these words he places Jesus stamp of approval on all these revelations. Jesus then says, Yes, I am coming quickly to which John replies, Amen. Come Lord Jesus. Those who have repented and seek to obey Him have nothing to fear at the prospect of His coming to spiritually discipline His churches, nor of His glorious return at the end of the age. In fact, true believers welcome any discipline He considers necessary to administer, and the hope of seeing Him someday face to face is their greatest joy. So we can all join John when he says, Amen. Come Lord Jesus.
Verse 21: Johns closing statement is a prayer of blessing over all who receive these revelations. He prays, The grace of the Lord Jesus be with all. It is to Gods grace he entrusts us, reminding us we will always have the spiritual resources we need to overcome, we will never be abandoned by God and left to face persecution or temptation alone. Because of the love of the Father and the sacrifice and resurrection of His Son, the Holy Spirit is now our constant companion. So with John we say, Amen! and boldly face whatever the future may bring.