Piety ("godly" in NKJV) also appears as "devout" in Acts 10:2, 7. This word means "to give to God reverence and worship that emanates from a holy life." Thus, it includes the sense of being dedicated, consecrated, earnest, faithful, and loyal with an implication of intensity and intrinsic sanctity. In other words, a pious, devout, godly person is deeply committed, earnest, and serious about his religious duties. One who is godly will not lackadaisically drift through life and into the Kingdom of God. Jesus says that those who attain it expend a great deal of effort (Matthew 11:12).
John W. Ritenbaugh
Five Teachings of Grace