Tafsiran Ulangan 13:5: Rashi, Ramban, Ibn Ezra & Sforno

ואת מצותיו תשמורו HIS COMMANDMENTS YE SHALL KEEP — the Law of Moses,

AFTER THE ETERNAL YOUR G-D SHALL YE WALK. This is a commandment that we follow His counsel, and of Him alone shall we inquire concerning every hidden thing and inquire concerning the future, as it is written, and she went to inquire of the Eternal;¹⁴⁵Genesis 25:22. because the people come unto me to inquire of G-d.¹⁴⁶Exodus 18:15. And so did the Israelites do with the prophets, [as it is said,] Is there not here a prophet of the Eternal, that we may inquire of the Eternal through him?;¹⁴⁷II Kings 3:11. that the Eternal thy G-d may tell us the way wherein we should walk, and the thing we should do.¹⁴⁸Jeremiah 42:3. And in the Sifre it is stated:¹⁴⁹Sifre, R’eih 85. “After the Eternal your G-d [shall ye walk] — this refers to the cloud [of Glory].”¹⁵⁰See Ramban to Numbers 9:19: “They did the will of G-d in following after the cloud [of Glory].” See also my Hebrew commentary here p. 406. This is as we have explained, that we are to hearken to the “voice” of His signs and follow His counsel.

after God your God must you walk you must imitate His acts, to the best of your ability, and pursue His ways.

ובקלו תשמעו HIS VOICE YE SHALL OBEY — the voice of the prophets,