Rotten principles make rotten Christians.
—Benjamin Keach
We work according as our principles are. Principles are the foundation of all conclusions that arise from them. As our grounds are, so are we in our faith, and working, and grace, and comfort every way. If we have rotten principles, if the grounds of our comfort be rotten, our course will be rotten and uncomfortable in the conclusion. Let us build upon the rock, to be well bottomed and founded, that our principles and grounds be strong, and that they be so to us; for what if God be with his, if he be not so to us? Let us labour to lay up sound grounds. Grounds have influence into the whole course of our lives.
—Richard Sibbes
There are several sorts of principles; there are some that are false and rotten, and some more tolerable, and some good and sound, and some rare and excellent.
1. There are some false and rotten principles, as carnal example and custom. Men will do as they have done, or as others do; they will own the religion that their fathers have done, be it what it will. By the same reason you may serve Mahomet as well as Christ. A man that standeth upon the vantage-ground is not taller than another; such are of no better constitution than the Turks, only they stand upon the vantage-ground. Another rotten principle is vainglory, to be seen of men, Mat. vi.; they pray and give alms to be seen of men. 'Come see my zeal for the Lord of hosts,' saith Jehu. Vainglory many times filleth the sails, and carries us on in the service of God. So secular and worldly interests and ends; as the Pharisees made long prayers that they might devour widows' houses, Mat. xxiii.; that is, they made long prayers and show of devotion, to be trusted with the management of widows' estates, to make a prey of them. All that I shall say to this principle is this, that it is better for the world that men would serve God anyhow, that Christ should be served out of vainglory, than not served at all; as the apostle saith some preach Christ out of envy, and others out of good-will, but I am glad so Christ be preached, Phil. i. 18; though they themselves be rotten-hearted hypocrites, yet the world fares the better for it.
2. There are some more tolerable principles, the hope of temporal mercies. When we come and pray, and do not seek the favour of God, but seek temporal mercies: Hosea vii. 14, 'They howled upon their beds for corn and wine.' Or the fear of temporal judgments, Isa. lviii. 5 ; Jer. ii. 16; when all that they do is to remove some temporal judgment: 'In their afflictions they will seek me right early.' And I think I may add one thing more here, the fear of eternal death, when it is alone (otherwise it is a grace); they shall be damned else; and so it is a sleepy sop to appease an accusing conscience, and so it is but a sin-offering. Though it requireth some faith to fear what is to come, yet fear of punishment alone showeth you are slaves, and only love yourselves: the devils fear and tremble, but do not love. You may fear a thing though you hate it. So far as the heart is affected with the fear of hell, it is good.
3. There are very good and sound principles, yet do not always argue grace, as when duties are done out of the urgings of an enlightened conscience; this may be without the bent of a renewed heart, but yet the principle is sound; for the first thing that influenceth a man is to consider himself a creature, and so to look upon himself as bound to obey his creator. I shall illustrate it by the apostle's words in another case: I must preach the gospel, and 'woe unto me if I preach not the gospel,' 1 Cor. ix. 16, 17, 'Whether I do it willingly or unwillingly, yet a dispensation is committed to me.' So saith the soul, Whether I be fitted to do God service or no, God must be obeyed. But because God's precept is invested with a sanction of threatenings and rewards, here comes in the fear of hell and the hope of heaven. The Lord hath commanded me to fly from hell; this is a good principle: so the hope of heaven, Heb. xi. 26; it is a sound principle: a man may be gracious, or he may not. Many have a liking to heaven and eternal life, as it is a state of happiness, not of likeness to God. Where it is not alone, it is a very sound principle, but as it is, it may sometimes be the sign of a renewed man, and sometimes not.
4. There are rare and excellent principles, when we act out of thankfulness to God, when we consider the Lord's goodness, that might have required duty out of mere sovereignty; he hath laid the foundation of it in the blood of his own Son, 1 John iv. 29; when we love him out of the sense of his love to us in Christ, and when the grace of God that hath appeared teacheth us to deny ungodliness, Titus ii. 11; when the mercies of God melt us, Rom. xii. 1; when there are no entreaties so powerful as that of love. Again, another principle that is rare and excellent is when the glory of God doth season us in our whole course, that it may be to the praise of his glorious grace, 1 Cor. x. 31. Another is complacency in the work for the work's sake, when we love the law because it is pure, when I see it will ennoble me and make me like God, when I love God and his ways, when nothing but so noble employment doth engage me to his service; and service to God is the sweetest life in the world.
—Thomas Manton