'Word of the Lord' in the Bible

after this the apostles having certified and preached the word of the Lord, returned to Jerusalem, preaching the gospel by the way in many villages of the Samaritans.

and the word of the Lord spread through the whole country.

Some time after, Paul said to Barnabas, let us return to visit all those cities, where we have preach'd the word of the Lord, to see what condition the brethren are in.

then they declared the word of the Lord to him, and to all his family.

but the word of the Lord remains for ever: and that is the gospel, which has been preached to you.