'Guardian' in the Bible

You were [an] anointed guardian cherub, and I placed you on {God's holy mountain}; you walked in the midst of stones of fire.

In the abundance of your trading, they filled the midst of you [with] violence, and you sinned; and I cast you as a profane thing from the mountain of God, and I expelled you, [the] guardian cherub, from the midst of [the] stones of fire.

So then, the law became our guardian until Christ, in order that we could be justified by faith.

But [after] faith has come, we are no longer under a guardian.

For you were going astray like sheep, but you have turned back now to the shepherd and guardian of your souls.