Galatians 6:7-10 (NKJV),
7 Do not be deceived, God is not mocked; for whatever a man sows, that he will also reap. 8 For he who sows to his flesh will of the flesh reap corruption, but he who sows to the Spirit will of the Spirit reap everlasting life.9 And let us not grow weary while doing good, for in due season we shall reap if we do not lose heart.
10 Therefore as we have opportunity, let us all do good to all, especially those who are of the household of faith.

Matthew 5:13-16 (NKJV), “You are the salt of the earth; but if the salt loses its flavor, how shall it be seasoned? It is then good for nothing but to be thrown out and trampled underfoot by men. “You are the light of the world. A city that is set on a hill cannot be hidden. Nor do they light a lamp and put it under a basket, but on a lampstand, and it gives light to all who are in the house. Let your light so shine before men, that they may see your good works and glorify your Father in heaven.