וְאָֽנֹכִי֙ נְטַעְתִּ֣יךְ שֹׂרֵ֔ק כֻּלֹּ֖ה זֶ֣רַע אֱמֶ֑ת וְאֵיךְ֙ נֶהְפַּ֣כְתְּ לִ֔י סוּרֵ֖י הַגֶּ֥פֶן נָכְרִיָּֽה׃
Mesilat Yesharim
The in-depth study necessary in relation to them must be such that one escapes from them and all of their branches for they are one and all as "degenerate branches of a strange vine"(Yirmiyahu 2:21). Let us speak on each of them one at a time.