2. A king must be careful of the kingdom which he hath sworn to maintain. We have had many of too private a spirit, by whom self-interest hath been preferred to the public; it becometh a king well to be of a public spirit, to care more for the public than his own interest. Senates and states have had mottoes written over the doors of their meeting-places. Over the senate house of Rome was written, _Ne quid respublica detrimenti capiat_. I shall wish this may be written over your assembly-houses; but there is another which I would have written with it, _Ne quid ecclesia detrimenti capiat_. Be careful of both; let neither kirk nor state suffer hurt; let them go together. The best way for the standing of a kingdom is a well constitute kirk. They deceive kings who make them believe that the government of the kirk--I mean presbyterial government--cannot suit with monarchy. They suit well, it being the ordinance of Christ, rendering unto God what is God's, and unto Caesar what is Caesar's. 3. Kings who have a tender care of the kirk are called nursing fathers. You should be careful that the gospel may have a free passage through the kingdom; and that the government of the kirk may be preserved entire according to your solemn engagement. The kirk hath met with many enemies, as papists, prelates, malignants, which I pass as known enemies: but there are two sorts more, who at this time should be carefully looked on. 1. Sectaries, great enemies to the kirk, and to all the ordinances of Christ, and more particularly to presbyterial government, which they have, and would have, altogether destroyed. A king should set himself against these, because they are enemies, as well to the king as to the kirk, and strive to make both fall together. 2. Erastians, more dangerous snares to kings than sectaries; because kings can look well enough to these, who are against themselves, and their power, as sectaries, who will have no king. But erastians give more power to kings than they should have, and are great enemies to presbyterial government; for they would make kings believe that there is no government but the civil, and derived from thence, which is a great wrong to the Son of God, who hath the government of the kirk distinct from the civil, yet no ways prejudicial to it, being spiritual, and of another nature. Christ did put the magistrate out of suspicion, that His kingdom was not prejudicial to civil government, affirming, "My kingdom is not of this world." This government, Christ hath not committed to kings, but to the office-bearers of His house, who, in regard of civil subjection, are under the civil power as well as others; but, in their spiritual administration, they are under Christ, who hath not given unto any king upon earth the dispensation of spiritual things to His people.