Instruct and teach these things He means that the doctrine is of such a kind, that men ought not to be weary of it, though they heard it every day. There are, no doubt, other things to be taught; but there is emphasis in the demonstrative these; for it means that they are not things of small importance, of which it is enough to take a passing and brief notice; but, on the contrary, that they deserve to be repeated every day, because they cannot be too much inculcated. A prudent pastor ought, therefore, to consider what things are chiefly necessary, that he may dwell on them. Nor is there reason to dread that it shall become wearisome; for whosoever is of God will gladly hear frequently those things which need to be so often uttered.

These things command and teach - As important doctrines, and as embracing the sum of the Christian system. It follows from this, that a minister of the gospel is solemnly bound to teach that there is a sense in which God is the Saviour of all people. He is just as much bound to teach this, as he is that only those will be saved who believe. It is a glorious truth - and it is a thing for which a man should unceasingly give thanks to God that he may go and proclaim that He has provided salvation for all, and is willing that all should come and live.

These things command and teach - Let it be the sum and substance of thy preaching, that true religion is profitable for both worlds; that vice destroys both body and soul; that Christ tasted death for every man; and that he saves to the uttermost all them that believe in his name.

These things command and teach. What are to be commanded, command, and what are to be taught, teach; command to refuse and reject all profane and fabulous doctrines, and exhort to the exercise of true godliness, and teach the profitableness of that, and declare the promises made unto it, and assert the truth and acceptableness of them; command, order, and encourage believers to labour and suffer reproach for the sake of Christ, and his Gospel, in hope of enjoying the said promises, and teach them to trust in the God of their lives, and the Saviour of all men; and whereas to this authoritative way of teaching, Timothy's youth might be objected by himself, and others; it follows,

Men's youth will not be despised, if they keep from vanities and follies. Those who teach by their doctrine, must teach by their life. Their discourse must be edifying; their conversation must be holy; they must be examples of love to God and all good men, examples of spiritual-mindedness. Ministers must mind these things as their principal work and business. By this means their profiting will appear in all things, as well as to all persons; this is the way to profit in knowledge and grace, and also to profit others. The doctrine of a minister of Christ must be scriptural, clear, evangelical, and practical; well stated, explained, defended, and applied. But these duties leave no leisure for wordly pleasures, trifling visits, or idle conversation, and but little for what is mere amusement, and only ornamental. May every believer be enabled to let his profiting appear unto all men; seeking to experience the power of the gospel in his own soul, and to bring forth its fruits in his life.

These truths, to the exclusion of those useless and even injurious teachings (1-Timothy 4:1-8), while weighing well thyself, charge also upon others.