The word which he sent unto the children of Israel, preaching good tidings of peace by Jesus Christ (he is Lord of all)—

He has sent this message to the people of Israel, proclaiming the gospel of peace through Jesus Christ, who is Lord of all.

the word that he sent to the sons of Israel, proclaiming good news--peace through Jesus Christ (this one is Lord of all,)

The word which he sent to the sons of Israel, preaching peace by Jesus Christ, (he is Lord of all things,)