1. God invites us on His mission
2 Corinthians 5:17-21
Therefore, if anyone is in Christ, he is a new creation; the old has passed away, and see, the new has come! Everything is from God, who has reconciled us to himself through Christ and has given us the ministry of reconciliation. That is, in Christ, God was reconciling the world to himself, not counting their trespasses against them, and he has committed the message of reconciliation to us. Therefore, we are ambassadors for Christ, since God is making his appeal through us. We plead on Christ’s behalf: “Be reconciled to God.” He made the one who did not know sin to be sin for us, so that in him we might become the righteousness of God.
2. God changes us
In the year that King Uzziah died, I saw the Lord seated on a high and lofty throne, and the hem of his robe filled the temple. Seraphim were standing above him; they each had six wings: with two they covered their faces, with two they covered their feet, and with two they flew. And one called to another: Holy, holy, holy is the Lord of Armies; his glory fills the whole earth. The foundations of the doorways shook at the sound of their voices, and the temple was filled with smoke. Then I said: Woe is me for I am ruined because I am a man of unclean lips and live among a people of unclean lips, and because my eyes have seen the King, the Lord of Armies. Then one of the seraphim flew to me, and in his hand was a glowing coal that he had taken from the altar with tongs. He touched my mouth with it and said: Now that this has touched your lips, your iniquity is removed and your sin is atoned for. Then I heard the voice of the Lord asking: Who should I send? Who will go for us? I said: Here I am. Send me.
3. God's change in us is visible to others
The Lord would speak with Moses face to face, just as a man speaks with his friend, then Moses would return to the camp. His assistant, the young man Joshua son of Nun, would not leave the inside of the tent.
As Moses descended from Mount Sinai — with the two tablets of the testimony in his hands as he descended the mountain — he did not realize that the skin of his face shone as a result of his speaking with the Lord. When Aaron and all the Israelites saw Moses, the skin of his face shone! They were afraid to come near him.
When Moses had finished speaking with them, he put a veil over his face. But whenever Moses went before the Lord to speak with him, he would remove the veil until he came out. After he came out, he would tell the Israelites what he had been commanded, and the Israelites would see that Moses’s face was radiant. Then Moses would put the veil over his face again until he went to speak with the Lord.
4. We cooperate with God in our change
Therefore, my dear friends, just as you have always obeyed, so now, not only in my presence but even more in my absence, work out your own salvation with fear and trembling. For it is God who is working in you both to will and to work according to his good purpose.
Now saved, work on this. Gods doing the change but its a command. Cooperate with God. Be in tune with what he’s doing. Be in his word, in prayer, in communion.