Now the law of Moses was introduced [into the world] in order to cause sin to increase [i.e., it defined many things to be wrong that were previously not regarded as sin]. But with the increase of sin, God's unearned favor increased all the more.

But God, who has great love for us and abundant mercy [toward us],

Appeared

For God's unearned favor has appeared, bringing salvation to all people [i.e., in the coming of Christ].

But, it has [only] now been made known to us by the appearance of our Savior Christ Jesus, who has put an end to death and brought [never ending] life and incorruption [i.e., immortality] to light through the Gospel [message],

For then He would have had to suffer often since the creation of the world; but now at the end of the ages [i.e., the final period of world history] He has been revealed once [for all] to remove sin by sacrificing Himself.

General references

So then, it does not depend on what a person wants or does, but on God, who shows pity [i.e., to whomever He wants].

It was not the result of your own [good] deeds [See Titus 3:5], so that no one could boast [about it].

We love [God and others] because God has first loved us.