Does the Doctrine of Decrees destroys all Motive to Exertion?

Hodge v. 1 p. 548

A third objection is, that the doctrine of foreordination, which supposes the certainty of all events, tends to the neglect of all use of means. If everything will happen just as God has predetermined, we need give ourselves no concern, and need make no effort. (1.) This objection supposes that God has determined the end without reference to the means. The reverse, however, is true. The event is determined in connection with the means. If the latter fail, so will the former. God has decreed that men shall live by food. If any man refuses to eat, he will die. He has ordained that men shall be saved through faith. If a man refuses to believe, he will perish. If God has purposed that a man shall live, He has also purposed to preserve him from the suicidal folly of refusing to eat. (2.) There is another fallacy included in this objection. It supposes that the certainty that an event will happen, acts as a motive to neglect the means of its attainment. This is not according to reason or experience. The stronger the hope of success, the greater the motive to exertion. If sure of success in the use of the appropriate means, the incentive to effort becomes as strong as it can be. On the other hand, the less hope, the less disposition there is to exert ourselves; and where there is no hope, there will be no exertion. The rational and Scriptural foundation for the use of means, and the proper motives to avail ourselves of them, are, (1.) The command of God. (2.) Their adaptation to produce the effect. (3.) The divine ordination which makes the means necessary to the attainment of the end. And (4.) The promise of God to give his blessing to those who obediently avail themselves of the means of his appointment.