1 Timothy 4:15

Meditate on these things
Not only on those instructions, advices, and exhortations, which the apostle had given him, throughout this chapter, which might be very useful to him, often to think of, and revolve in his mind, and seriously consider and reflect upon; but upon the Scriptures, the reading of which he had recommended to him, and the doctrines contained therein; it becomes every man not only to read, but meditate on the word of God, and much more ministers of the Gospel. The Scriptures should be read with care, and be industriously and laboriously searched into, as men dig in mines for silver or golden ore; and passages in it should be carefully compared together, the more obscure with those that are more plain and easy; and the whole is to be studied with great attention and application: give thyself wholly to them:
to the reading of the Scriptures, meditation upon them, and preaching the doctrines contained in them, clear of all secular affairs, or worldly business and employment. The apostles threw off the branch of deaconship, or ministering to the poor, that they might give themselves up wholly to the ministry of the word, and prayer; and much more should worldly business be cast off, where the circumstances of ministers and churches will admit of it; a Christian soldier, or minister of the Gospel, ought not, if possible, to be entangled with the affairs of this life; he finds enough to do without, in the discharge of his ministerial function; and though the apostles sometimes wrought with their own hands, yet it was not because they had so much leisure from the ministry, or time on their hands, or because they had not a power of forbearing working, but out of necessity, see ( Acts 20:34 ) ( 1 Corinthians 9:6 1 Corinthians 9:7 ) ( 2 Timothy 2:4 ) , or these words may be rendered, be thou in these things;
let thine heart be in them; for if a minister's heart is not in his work, if he does not take delight in it, it will be a slavery and drudgery to him; spend all the time and strength in them, give thyself continually to them, and be always diligent and laborious in them: that thy profiting may appear to all;
that it may be manifest to all that attend the ministry of the word that there is an increase in gifts, a growing in spiritual knowledge, an improvement of the talents bestowed: or that this profiting or increase might appear in all things; in every branch of the ministry, both in exhortation or consolation, and in doctrine; or that it might be manifest among all; that is, all that hear might receive some profit, might learn, and be comforted and edified; faith might be increased, and the joy of it be furthered; and all under the ministry visibly thrive and flourish.