Gambling isn't the actual offense you will be charged with.
2 Corinthians 7:1; Colossians 3:5; Ephesians 4:19. Covetousness, Greediness, and a defilement of the flesh is what the offender will be counsoled on since "gambling" isn't actually mentioned in the scriptures. Because you covet what is not yours, you are displaying uncleanness with greediness for money, and gambling has known addiction issues and therefore is a defilement.