Reason 1. Because knowledge is unprofitable, if it be not reduced to practise. Now practise in difficult things cannot be had without care and heed.
2. Because many are the fallacies wherewith we are assaulted, both in the Devill and his instruments that are without us, and in our selves also, by reason of that marvellous deceitfulnesse of our hearts, such as cannot be expressed.
Vse. This may serve to exhort us, above all to take notice of our selves, and those things that tend to the strengthning and stablishing of us in grace.
Doctrine 13. It should be an argument to the faithfull to beware of the errors of some men, because they are wicked men, ungodly, and profane.
This is gathered from that title, the error of the wicked.
Reason. Because all those things that have any agreement with ungodlinesse are to be shunned and avoided. Now those things that are in a speciall manner approved of by profane men, must necessarily have an agreement with profane ungodlinesse.
Vse. This may serve to admonish us, by this means amongst others to strengthen our selves against divers errors, that are most pleasing to profane men.
Doctrine 14. [♦]Stedfastnesse and increase of grace are joyned together.
[♦] “Sedfastnesse” replaced with “Stedfastnesse”
This is gathered from the connexion of verse 17. with the 18.