ISB ~ 1 Thessalonians 2 v13

the word of God:The revealed gospel (1 Pet 1:25). This saving message was written down in the books of the NT and delivered orally in the form of apostolic preaching (2 Thess 2:15; CCC 104, 1349).

• The ministry of the apostles parallels the ministry of the Hebrew Prophets, who received the word of the Lord and announced it to Israel by word of mouth and in writing (1 Kings 17:1-2; Jer 1:4; Ezek 1:3; Hos 1:1).