Amen! No argument there.
But lets add:
2Th 2:15 Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word, or our epistle.
1Th 2:13 "For this cause also thank we God without ceasing, because, when ye received the word of God which ye heard of us, ye received it not as the word of men, but as it is in truth, the word of God, which effectually worketh also in you that believe."
How can a man's word be the Word of God unless it is of God i.e. God's Word?
“God, who at sundry times and in divers manners spake in times past unto the Father by the prophets, Hath in these last days spoken to us by His Son, whom He hath appointed heir of all things, by whom also He made the worlds; Who being the brightness of His glory, and the express image of his person, and upholding all things by the word of His power, when He had by Himself purged our sins, sat down at the right hand of the Majesty on high;” (Hebrews 1:1-3)