Bible verses about "duty" | BLB

¹⁸ And having come to them, Jesus spoke to them, saying, “All authority in heaven and on the earth has been given to Me. ¹⁹ Therefore having gone, disciple all the nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit, ²⁰ teaching them to observe all things, whatever I commanded you. And behold, I am with you all the days, until the completion of the age.”

²⁷ And answering, he said, “‘You shall love the Lord your God with all your heart, and with all your soul, and with all your strength, and with all your mind’ and ‘Your neighbor as yourself.’”

³⁸ And Peter says to them, “Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit.

⁹ that if you confess with your mouth, “Jesus is Lord,” and believe in your heart that God raised Him out from the dead, you will be saved. ¹⁰ For in the heart is belief unto righteousness, and in the mouth is confession unto salvation. ¹¹ For the Scripture says, “Everyone believing on Him will not be put to shame.” ¹² For there is no difference between Jew and Greek; for the same Lord of all is rich toward all those calling Him, ¹³ for, “Whoever shall call upon the name of the Lord will be saved.”

¹⁶ For God so loved the world that He gave the only begotten Son, so that everyone believing in Him should not perish, but should have eternal life.