A. H. Strong defines truth as the intersection of God’s being and God’s knowledge: By truth we mean that attribute of Divine nature in virtue of which God’s being and God’s knowledge eternally conform to each other. (Systematic Theology, p. 260)

Truth is therefore anything factual about God. The child of God may well say, “I speak (or serve) the truth,” but only the Son of God can say, “I am the truth” (John 14:6).

Since Christ is the truth of God, we are successful in our search for truth only as we recognize Him. Whether all roads lead to Rome depends upon which way your face is turned. Follow a point of land out into the sea, and you find only ocean. With the back turned upon Jesus Christ all following after truth leads only into mist and darkness. (Ibid., p. 262)

God is truth for he alone represents things as they actually are, for truth is reality revealed. The Bible is thus the truth of God, for it was inspired by the God of truth! This is why both God’s Scriptures and God’s Son are the very essence of truth.

God is the ultimate and only source and standard of truth. This is why the Bible describes the “God, that cannot lie” (Titus 1:2), and concludes that it is utterly “impossible for God to lie” (Heb 6:18).

This may be taken a step further and stated that he not only cannot lie, but he need not lie. A lie is almost always resorted to by human beings to get out of a tight spot, to impress someone, to gain an advantage, etc. But Almighty God never finds himself in any of these situations (Ps 50:10–12).

God is true because his character and reputation are identical. In light of this, he is both the source and standard of all truth, which is derived from him and by him. This includes every fact about time, space, the universe, [p. 465] angels, man, animals, and the very atoms themselves. How does this attribute relate to man? Consider this illustration:

One’s first flight over Egypt is a remarkable experience. To describe the sight from the air, imagine a sheet of light-brown construction paper. Take a blue felt-tip pen and make a line down the center of the sheet from top to bottom. Now take a green felt-tip pen and make two lines, one running along each side of the blue line. This is how Egypt looks from a plane; the blue line is the Nile, and the green line on either side is the fertile and productive strip of land created by the life-giving waters. The brown sheet itself represents the desert.

All knowledge possessed by human beings can be pictured as the untold grains of sand represented by that brown sheet. It is there, but totally useless and unproductive in and of itself. But allow the waters of the Word of God to occupy the central place, then suddenly any and all facts become fertile, useful, and productive wisdom.

Finally, it may be said all truth is of God, wherever it is found. This would include the fields of physics, astronomy, geology, medicine, biology, engineering, philosophy, etc. Pilate famously asked Jesus, “What is truth?” (John 18:38). This is perhaps one of the most ironic moments in all history, for here is a pagan who demands from one who is truth to define what is truth!