2 Kings 5:1-4 (NKJV)
Now Naaman, commander of the army of the king of Syria, was a great and honorable man in the eyes of his master, because by him the Lord had given victory to Syria. He was also a mighty man of valor, but a leper. 2 And the Syrians had gone out on raids, and had brought back captive a young girl from the land of Israel. She waited on Naaman’s wife. 3 Then she said to her mistress, “If only my master were with the prophet who is in Samaria! For he would heal him of his leprosy.” 4 And Naaman went in and told his master, saying, “Thus and thus said the girl who is from the land of Israel.”

2 Kings 5:8-15 (NKJV)
So it was, when Elisha the man of God heard that the king of Israel had torn his clothes, that he sent to the king, saying, “Why have you torn your clothes? Please let him come to me, and he shall know that there is a prophet in Israel.” ⁹ Then Naaman went with his horses and chariot, and he stood at the door of Elisha’s house. ¹⁰ And Elisha sent a messenger to him, saying, “Go and wash in the Jordan seven times, and your flesh shall be restored to you, and you shall be clean.” ¹¹ But Naaman became furious, and went away and said, “Indeed, I said to myself, ‘He will surely come out to me, and stand and call on the name of the Lord his God, and wave his hand over the place, and heal the leprosy.’ ¹² Are not the Abanah and the Pharpar, the rivers of Damascus, better than all the waters of Israel? Could I not wash in them and be clean?” So he turned and went away in a rage. ¹³ And his servants came near and spoke to him, and said, “My father, if the prophet had told you to do something great, would you not have done it? How much more then, when he says to you, ‘Wash, and be clean’?” ¹⁴ So he went down and dipped seven times in the Jordan, according to the saying of the man of God; and his flesh was restored like the flesh of a little child, and he was clean. ¹⁵ And he returned to the man of God, he and all his aides, and came and stood before him; and he said, “Indeed, now I know that there is no God in all the earth, except in Israel; now therefore, please take a gift from your servant.”

Jude 3 (NKJV)
Beloved, while I was very diligent to write to you concerning our common salvation, I found it necessary to write to you exhorting you to contend earnestly for the faith which was once for all delivered to the saints.

Jude 20-21 (NKJV)
But you, beloved, building yourselves up on your most holy faith, praying in the Holy Spirit, ²¹ keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ unto eternal life.

Acts 2:44-47 (NKJV)
Now all who believed were together, and had all things in common, ⁴⁵ and sold their possessions and goods, and divided them among all, as anyone had need. ⁴⁶ So continuing daily with one accord in the temple, and breaking bread from house to house, they ate their food with gladness and simplicity of heart, ⁴⁷ praising God and having favor with all the people. And the Lord added to the church daily those who were being saved.

1 Corinthians 16:13-14 (NKJV)
Watch, stand fast in the faith, be brave, be strong. ¹⁴ Let all that you do be done with love.