אַל־תִּֽהְי֤וּ ׀ כְּס֥וּס כְּפֶרֶד֮ אֵ֤ין הָ֫בִ֥ין בְּמֶֽתֶג־וָרֶ֣סֶן עֶדְי֣וֹ לִבְל֑וֹם בַּ֝֗ל קְרֹ֣ב אֵלֶֽיךָ׃
Be ye not as the horse, or as the mule, which have no understanding; Whose mouth must be held in with bit and bridle, That they come not near unto thee.
Read halakhic rulings (Jewish law) on Psalms 32:9: and classical halakhic sources.