'Assures' in the Bible

They do not say to themselves, "Let us revere the Lord our God. It is he who gives us the autumn rains and the spring rains at the proper time. It is he who assures us of the regular weeks of harvest."

except that in town after town the Holy Spirit assures me that imprisonment and suffering are waiting for me.

I am telling the truth in Christ (I am not lying!), for my conscience assures me in the Holy Spirit --

The Holy Spirit also assures us of this, for he said: