Faithful1. obsolete : full of faith2: steadfast in affection or allegiance : loyal3: firm in adherence to promises or in observance of duty :conscientious4: given with strong assurance : binding <a faithful promise>5: true to the facts, to a standard, or to an original <a faithfulcopy>
— faith·ful·lyadverb— faith·ful·nessnoun
For great is your love, reaching to the heavens; your faithfulness reaches to the skies.
Now fear the LORD and serve him with all faithfulness. Throw away the gods your ancestors worshiped beyond the Euphrates River and in Egypt, and serve the LORD.
Do not those who plot evil go astray? But those who plan what is good find love and faithfulness.