The basic meaning of "follow" in the Bible is pretty obvious if we consider what it means to "follow the Lord." That obviously doesn't mean we're going to wait for Him to go for a walk and tag along; it means we're going to do the things He said and believe the things He tells us in the Bible. We're going to follow Him by making His precepts a part of our lives. That same idea applies to other cases. When people in the Bible follow something, it means they are making that spiritual thing (whatever spiritual thing is described) a part of their lives. And the order of the language can even be reversed: sometimes things are described as following people (as in Psalm 23: "surely goodness and mercy will follow me..."), which again means that people are making those spiritual qualities a part of their lives.

9251. 'You shall not follow a multitude into evil things' means not being associated with such things, that is to say, with those mentioned above, namely listening to false ideas, obeying malevolent feelings, and affirming such things as are contrary to the good of charity. These are the 'evil things' that are meant. 'Following after a multitude' means being with many, thus being associated with them. For the original language speaks of 'being after', 'going after', and 'walking after', which are used to mean being with and following, and so being associated with, as in Jeremiah 7:9; 11:10; 1 Samuel 17:13; 1 Kings 14:8; Deuteronomy 4:3; 8:19; and elsewhere.