'Work of the Lord' in the Bible

Then God said, “Behold, I am going to make a covenant. Before all your people I will do wondrous works (miracles) such as have not been created or produced in all the earth nor among any of the nations; and all the people among whom you live shall see the working of the Lord, for it is a fearful and awesome thing that I am going to do with you.

For your eyes have seen all the great work of the Lord which He did.

Had I not feared the provocation of the enemy,That their adversaries would misjudge,That they would say, “Our [own] hand has prevailed,And the Lord has not done all this.”’

In the second year of their coming to God’s house at Jerusalem, in the second month, Zerubbabel the son of Shealtiel and Jeshua the son of Jozadak began [the work], with the rest of their brothers—the priests and Levites and all who came to Jerusalem from the captivity. They appointed the Levites, from twenty years old and upward, to oversee the work of the house of the Lord.

“Cursed is the one who does the work of the Lord negligently,And cursed is the one who restrains his sword from blood [in executing the judgment of the Lord].

The Lord has brought about our vindication and has revealed the righteousness of our cause;Come and let us proclaim in ZionThe work of the Lord our God!

Therefore, my beloved brothers and sisters, be steadfast, immovable, always excelling in the work of the Lord [always doing your best and doing more than is needed], being continually aware that your labor [even to the point of exhaustion] in the Lord is not futile nor wasted [it is never without purpose].