'Sure' in the Bible

Only, be sure not to eat the blood, because the blood is the life, and you shall not eat the life with the meat.

May the path of your foot be balanced and all your ways be sure.

Let us know, let us press on to know Yahweh; his rising [is] sure like [the] dawn. He will come like the showers to us, like [the] spring rain that waters [the] earth.

which [things] {although they have}, to be sure, an appearance of wisdom in self-made religion and humility and unsparing treatment of the body, {do not have any value} against the indulgence of the flesh.