I don't think we have anyone on earth that work for God and later regret it at last. When we work for God there is always a big reward for us and our reward will not only be earthly reward but also heavenly reward.
"The Bible says Seest thou a man diligent in his business? he shall stand before kings;he shall not stand before men. Proverb 22:24
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God's promises are ye and amen and nothing can change it. Giving ourselves away just to serve him should be our main purpose on earth not to serve man that can disappoint us anytime.
Serving God, reading his words will not only bless us financially but also bless our children and our generations to come, it make us rich in wisdom and give us understanding of what governs the earth.
When you are into God's business, you can never lose, you don't just sit with men but you sit with kings, God is sweet, tap into this sweetness. You can be diligent by keeping God's commandments and giving yourself away to God and he will never disappoint you.
God never loss, never fails, never disappoint, why don't you make your life on earth feels like heaven by giving your life to christ and be diligent in his work to receive all the promises. He aims is always open give your life to him today.
Thanks for your time.