Being chosen by God means that our debt has already been paid, no one can bring in a charge against us.
Romans 8:31-34 (NKJV) “What then shall we say to these things? If God is for us, who can be against us? 32 He who did not spare His own Son, but delivered Him up for us all, how shall He not with Him also freely give us all things? 33 Who shall bring a charge against God’s elect? It is God who justifies. 34 Who is he who condemns? It is Christ who died, and furthermore is also risen, who is even at the right hand of God, who also makes intercession for us.”
Being chosen by God makes us humble. In the passage below, Paul makes this point. He starts by telling us to consider our “calling,” because this calling — from death to life — is the way we experience in time the choice he made in eternity. Then he mentions three times our being chosen.
1 Corinthians 1:26-29 (ESV) “For consider your calling, brothers: not many of you were wise according to worldly standards, not many were powerful, not many were of noble birth. 27 But God chose what is foolish in the world to shame the wise; God chose what is weak in the world to shame the strong; 28 God chose what is low and despised in the world, even things that are not, to bring to nothing things that are, 29 so that no human being might boast in the presence of God.”
Paul doesn’t leave us to guess what the point is. It is this: “so that no human being might boast in the presence of God.” God’s choosing is designed to remove our boasting.
If we want to boast we should only boast in the Lord.
1 Corinthians 1:31 (ESV) “so that, as it is written, “Let the one who boasts, boast in the Lord.”
Jeremiah 9:24 (ESV) “but let him who boasts boast in this, that he understands and knows me, that I am the Lord who practices steadfast love, justice, and righteousness in the earth. For in these things I delight, declares the Lord.”
1 Corinthians 3:7 (ESV) “So neither he who plants nor he who waters is anything, but only God who gives the growth.”
2 Corinthians 3:5 (ESV) “Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God”
2 Corinthians 12:9 (ESV) “But he said to me, “My grace is sufficient for you, for my power is made perfect in weakness.” Therefore I will boast all the more gladly of my weaknesses, so that the power of Christ may rest upon me.”