# They commit adultery

Possible meanings: they were literally unfaithful to their wives or their worship of other gods is spoken of as spiritual adultery.

# walk in deceit

"live in dishonesty"

# They strengthen the hands of evildoers

"They strengthen those who do evil" or "They encourage people who do evil"

# no one turns back from his wickedness

"everyone continues in their sin"

# All of them have become like Sodom ... like Gomorrah

"They all became as evil as Sodom ... as wicked as Gomorrah". Sodom and Gomorrah were cities that were so wicked that God destroyed them with fire from heaven.