Ummm, and this is supposed to prove that we don't have to receive salvation by a free choice? It does just the opposite. We repent and God saves. Of course salvation is an act of God. But it's not irresistibly applied as Paul confirms here.
renniks, you have error in your post.
1) It's Peter that spoke these words, not Paul.
2) Repentance is from God, and here is the explanation:
BIBLE CITATION: For the sorrow that is according to [the will] [of] God produces a repentance without regret, [leading] to salvation (2 Corinthians 7:10).
The Apostle Paul did not write "sorrow that is according to your free will" - no he did NOT - the Apostle Paul ascribed to God that which is rightly God's - Godly sorrow leading to repentance to salvation!
Behold, more of Paul's writing:
BIBLE CITATION: Or do you think lightly of the riches of His kindness and tolerance and patience, not knowing that the kindness of God leads you to repentance? (Romans 2:4).
Notice that rebuke of people that despise repentance being from God!
BIBLE CITATION: When they heard this, they quieted down and glorified God, saying, "Well then, God has granted to the Gentiles also the repentance that leads to life." (Acts 11:18)
See that God grants repentance.
BIBLE CITATION: I now rejoice, not that you were made sorrowful, but that you were made sorrowful to the point of repentance; for you were made sorrowful according to the will of God, so that you might not suffer loss in anything through us. For the sorrow that is according to the will of God produces a repentance without regret, leading to salvation, but the sorrow of the world produces death. (2 Corinthians 7:9-10)
BIBLE CITATION: with gentleness correcting those who are in opposition, if perhaps God may grant them repentance leading to the knowledge of the truth, (2 Timothy 2:25)
God grants repentance; therefore, repentance is not a work conjured up by man nor by man's "free choice".
renniks, no place in the Bible states that people "receive salvation by a free choice". You are attempting to put words into the Bible by saying that people "receive salvation by a free choice".
After all, Lord Jesus said "you did not choose Me, but I chose you" (John 15:16).