Doing the will of God and building His kingdom is great work.

“I am doing a great work, so that I cannot come down.” (Neh 6:3)
“Therefore, whether you eat or drink, or whatever you do, do all to the glory of God.” (1Cor 10:31)
“to ask that you may be filled with the knowledge of His will in all wisdom and spiritual understanding; that you may walk worthy of the Lord, fully pleasing Him” (Col 1:9,10)
“to whom He also presented Himself alive after His suffering by many infallible proofs, being seen by them during forty days and speaking of the things pertaining to the kingdom of God.” (Acts 1:3)
“preaching the kingdom of God and teaching the things which concern the Lord Jesus Christ with all confidence, no one forbidding him.” (Acts 28:31)
“Then he said to Jesus, Lord, remember me when You come into Your kingdom.” (Lk 23:42)
“And I bestow upon you a kingdom, just as My Father bestowed one upon Me, that you may eat and drink at My table in My kingdom, and sit on thrones judging the twelve tribes of Israel.” (Lk 22:29-30)
“Jesus answered, My kingdom is not of this world. If My kingdom were of this world, My servants would fight, so that I should not be delivered to the Jews; but now My kingdom is not from here.” (Jn 18:36)
“Assuredly, I say to you, there are some standing here who shall not taste death till they see the Son of Man coming in His kingdom.” (Matt 16:28)
“Assuredly I say to you, that in the regeneration, when the Son of Man sits on the throne of His glory, you who have followed Me will also sit on twelve thrones, judging the twelve tribes of Israel.” (Matt 19:28)
“When the Son of Man comes in His glory, and all the holy angels with Him, then He will sit on the throne of His glory.” (Matt 25:31)
“He has delivered us from the power of darkness and conveyed us into the kingdom of the Son of His love” (Col 1:13)
Reading: Neh 6-8; Acts 6