And whatever you do, do it heartily, as to the Lord and not to men, knowing that from the Lord you will receive the reward of the inheritance; for you serve the Lord Christ.
COLOSSIANS 3:23-24 (NKJV)
Jesus said, "Come unto me, all ye that labour and are heavy laden, and I will give you rest" Matthew 11:28
"What profit hath a man of all his labour which he taketh under the sun?" Eccelesiastes 1:3
"Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shallgive unto you: for him hath God the Father sealed." John 6:27
"Now he that planteth and he that watereth are one: and every man shall receive his own reward according to his own labour." 1 Corinthians 3:8