“And let us not be weary in well doing: for in due season we shall reap, if we faint not.”
Galatians 6:9

The main verse is an encouraging scripture; firstly, he knows that one could get weary in, tired of doing well, but he says do not. Keep expressing the reality that God is your father and do good to all men:
“But love ye your enemies, and do good, and lend, hoping for nothing again; and your reward shall be great, and ye shall be the children of the Highest: for he is kind unto the unthankful and to the evil.” Luke 6:35
Especially your brothers and sisters in Christ:
“As we have therefore opportunity, let us do good unto all men, especially unto them who are of the household of faith.” Galatians 6:10
And for those who might not be conscious of it, he says there is a reward for your doing good IF you don’t get tired, if you don’t stop.