Titus 2:11-13 What Grace is.

Romans 2:4-5 Despisest the riches of Grace

Hebrews 12:14-15 Pulling Away from the Grace of God

Three Groups of People that  pulled back/rejected the grace of God.

1. Children of Israel (After saved from the land of Egypt)
2. Angels (Fallen Angels)
3. Sodom and Gomorrha (Sin of Fornication)

There is nothing left for them but the Judgement.