Final answer:
The verses that say we are to work heartily unto God are found in Colossians 3:23-24. The passage reminds us to work with enthusiasm and dedication.
Step-by-step explanation:
The verses that say we are to work heartily unto God are found in Colossians 3:23-24. The passage states, "Whatever you do, work heartily, as for the Lord and not for men, knowing that from the Lord you will receive the inheritance as your reward. You are serving the Lord Christ." This verse reminds us that our work should be done with enthusiasm and dedication, as if we are serving God Himself.