Godly means devout in conduct, living by divine law. A godly life, godly people, godly and honest.
The point is conduct rather than display, since a godly person is judged by how they behave and not by how much they pray. It belongs to Puritan English above all, where the godly meant a whole party.
1adjectivegodlyDevout in conduct, living by divine law so that righteousness shows in behaviour rather than in outward displays of devotion.
“The villagers described the old priest as a godly man who lived simply and helped the poor.”
godly is a quality.
From god + -ly.
Etymology from Wiktionary, CC BY-SA