The following is from Charles Hodge’s Systematic Theology.
In the fourth place, in theology as in natural science, principles are derived from facts, and not impressed upon them. The properties of matter, the laws of motion, of magnetism, of light, etc., are not framed by the mind. They are not laws of thought. They are deductions from facts. The investigator sees, or ascertains by observation, what are the laws which determine material phenomena; he does not invent those laws. His speculations on matters of science unless sustained by facts, are worthless. It is no less unscientific for the theologian to assume a theory as to the nature of virtue, of sin, of liberty, of moral obligation, and then explain the facts of Scripture in accordance with his theories. His only proper course is to derive his theory of virtue, of sin, of liberty, of obligation from the facts of the Bible. He should remember that his business is not to set forth his system of truth (that is of no account), but to ascertain and exhibit what is God’s system, which is a matter of the greatest moment. If he cannot believe what the facts of the Bible assume to be true, let him say so. Let the sacred writers have their doctrine, while he has his own. To this ground a large class of modern exegetes and theologians, after a long struggle, have actually come. They give what they regard as the doctrines of the Old Testament; then those of the Evangelists; then those of the Apostles; and then of their own. This is fair. So long, however, as the binding authority of Scripture is acknowledged, the temptation is very strong to press the facts of the Bible into accordance with our preconceived theories. If a man be persuaded that certainty in acting is inconsistent with liberty of action; that a free agent can always act contrary to any amount of influence (not destructive of his liberty) brought to bear upon him, he will inevitably deny that the Scriptures teach the contrary, and thus be forced to explain away all facts which prove the absolute control of God over the will and volitions of man. If he hold that sinfulness can be predicated only of intelligent, voluntary action in contravention of law, he must deny that men are born in sin, let the Bible teach what it may. If he believes that ability limits obligation, he must believe independently of the scriptures, or in opposition to them, it matters not which, that men are able to repent, believe, love God perfectly, to live without sin, at any, and all times, without the least assistance from the Spirit of God. If he deny that the innocent may justly suffer penal evil for the guilty, he must deny that Christ bore our sins. If he deny that the merit of one man can be the judicial ground of the pardon and salvation of other men, he must reject the Scriptural doctrine of justification. It is plain that complete havoc must me made of the whole system of revealed truth, unless we consent to derive our philosophy from the Bible, instead of explaining the Bible by our philosophy…As natural science was a chaos until the principal of induction was admitted and faithfully carried out, so theology is a jumble of human speculations, not worth a straw, when men refuse to apply the same principle to the study of the Word of God. [Vol. I, pg. 13-15]