“God is not unjust; he will not forget your work and the love you have shown him as you have helped his people and continue to help them.” – Hebrews 6:10
God knows everything. He sees everything even the smallest act you have done in public or in private. Nothing is secret to Him. Therefore, don’t ever think that the simplest act of service you have done has no merit. There is. In fact, the small act of kindness of opening the door to someone merits rejoicing in heaven.