'Work of the Lord' in the Bible

Then Jesus said to them, "Did you never read in the Scriptures: 'That stone which the builders threw away has become the cornerstone; this is the work of the Lord and seems wonderful to us!'

This is the work of the Lord, and seems wonderful to us'?"

Remember me to Tryphaena and Tryphosa, who continued to toil in the work of the Lord. Remember me to my dear friend Persis, who toiled so hard in the work of the Lord.

Therefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not in vain in the Lord.

Now if Timotheus come, see that he may be with you without fear: for he worketh the work of the Lord, as I also do.

Because, for the sake of the work of the Lord, unto death, he drew nigh, running hazard with his life, that he might fill up your lack of the public service, towards me.