1 Corinthians 15:58 says, “Therefore, my beloved brethren, be ye steadfast, unmovable, always abounding in the work of the Lord, forasmuch as ye know that your labor is not in vain in the Lord.” Galatians 6:9 admonishes, “And let us not be weary in well doing: for in due season we shall reap, if we faint not.”