The New Testament writers used words like consider, think, test, set your mind on, to remind their readers and by extension us that our minds are given to us by God. Yes the Scripture is inspired and spiritual, but the Spirit used language that has vocabulary and grammar to transmit the nature and character of God to us. We are expected to understand mentally and rationally, 2 Corinthians 1:13 explicitly states this.
Our minds are to be engaged. We are to think. Even when it is hard.