'Traditions' in the Bible

Now I praise you that ye remember me in all things, and hold fast the traditions, even as I delivered them to you.

and I advanced in the Jews religion beyond many of mine own age among my countrymen, being more exceedingly zealous for the traditions of my fathers.

So then, brethren, stand fast, and hold the traditions which ye were taught, whether by word, or by epistle of ours.