The people who know their God shall stand firm.
Every believer understands that to know God is the highest and best form of knowledge; and this spiritual knowledge is a source of strength to the Christian. It strengthens his faith. Believers are constantly referred to in the Bible as people who are enlightened and taught by the Lord; they are said to “have been anointed by the Holy One,”1 and it is the Spirit’s peculiar office to lead them into all truth, so that they might grow in their faith.
Knowledge strengthens love as well as faith. Knowledge opens the door, and then through that door we see our Savior. Or to put it another way, knowledge paints the portrait of Jesus, and when we see that portrait, then we love Him. We cannot love a Christ whom we do not know at least in some degree. If we know only a little of the excellencies of Jesus, what He has done for us and what He is doing now, we cannot love Him much; but the more we know Him, the more we will love Him.
Knowledge also strengthens hope. How can we hope for something if we do not know of its existence? Hope may be the telescope, but until we receive instruction, our ignorance blocks our view, and we can see nothing. Knowledge removes the blockage, and when we look through the bright optic glass we discover the glory to be revealed and anticipate it with joyful confidence.
Knowledge supplies us with reason for patience. How will we have patience unless we know something of the sympathy of Christ and understand the good that comes out of the correction that our heavenly Father sends us? There is not a single Christian who, under God, will not be fostered and brought to perfection by holy knowledge. It is then very important that we should grow not only in grace, but in the knowledge of our Lord and Savior Jesus Christ.
1) 1 John 2:20
C.H. Spurgeon, revised and updated by Alistair Begg.