'Teachings' in the Bible

nor have we obeyed the voice of the Lord our God, to walk in His teachings which He set before us through His servants the prophets.

(which all refer to things destined to perish with use)—in accordance with the commandments and teachings of men?

Do not be carried away by varied and strange teachings; for it is good for the heart to be strengthened by grace, not by foods, through which those who were so occupied were not benefited.