Man is not saved by works; however, through the new birth, he is “created in Christ Jesus unto” (Ephesians 2:10) and should be “zealous of” (Titus 2:14) good works. The Lord could easily save a man and immediately take him to heaven, but He chooses to leave man here on this earth to do a work for Him. Though the Lord’s work on this earth is made up of many details, it always includes “the ministry of reconciliation” (2 Corinthians 5:18). Similar to the responsibility to tell others about a known cure for a dreaded disease, every Christian has the responsibility to express to others their knowledge of the cure for the coming judgment of God and how to be reconciled to God.
Vengeance is not always executed in a swift fashion (Ecclesiastes 8:11). In fact, believers often grow weary because the wicked seem to prosper in spite of their evil deeds. Yet, the Lord will execute vengeance in His time. The Bible speaks often of “the day of vengeance” to come. This day is very likely a thousand year period (2 Peter 3:8) which will begin shortly before the second coming of the Lord and will end at the great white throne judgment following the end of the millennial kingdom. It will be a time when the Lord will refuse to spare the wicked (Proverbs 6:34) but will set things right for the Jewish people (Isaiah 34:8; Isaiah 61:2; Isaiah 63:4).
