Acts 27:31

Paul said to the centurion, and to the soldiers
He did not direct his speech to the governor and owner of the ship, who very likely, being sensible of the danger, were in the scheme with the mariners, and at the head of them; but to Julius the centurion, and the soldiers under him, who having no knowledge of maritime affairs, were not apprised of the danger, nor aware of the design of the shipmen; and besides, had now great dependence upon the assurance the apostle had given, that no life should be lost: to these he said,

except these abide in the ship, ye cannot be saved;
pointing to the mariners who were about to let down the boat, in order to make their escape: the apostle had before declared, that there should be no loss of any man's life, and yet now affirms, that unless the mariners continued in the ship, the rest of the company could not be saved: this does not show that the decree concerning the salvation of them was a conditional one, and that the condition was, that the mariners should stay in the ship; but that their stay in the ship, who had skill to guide and direct it, as also the company when shipwrecked, were a means absolutely fixed in the decree, and therefore was absolutely necessary: God had determined to save the whole ship's crew, and that in the same way and manner; they were all to be shipwrecked; some were not to leave the ship before hand, and save themselves in the boat, but they were all to be exposed to equal danger, and then be saved; and till that time came, the proper and prudent means were to be made use of, who were the shipmen, who best knew how to manage the ship in this extremity: this teaches us that the end and means, in the decrees of God, are not to be separated; nor is any end to be expected without the use of means; and means are as peremptorily fixed, and are as absolutely necessary, and must as certainly be accomplished, as the end. Thus spiritual and eternal salvation is a certain thing; it is the appointment of God, which is absolute and unconditional, immutable and unfrustrable; there is a sure connection between the decree of God and salvation; it is a scheme drawn by Jehovah in the council of peace, who is God only wise, saw everything before hand that would come to pass, and has power to execute his scheme; it is an affair secured in the covenant of grace, which is sure and immovable; God is faithful who has made it with his Son; and Christ, the surety and Mediator of it, is equal to that part which he has in it; yea, salvation is a finished work, full satisfaction is made for sin, and pardon procured, an everlasting righteousness is brought in, all enemies are conquered and destroyed, and Christ's people are saved from them: and the interest which he has in them shows the certainty of their salvation; for they are given to him, and are in his hands; they are his portion, his treasure and his jewels; they are the purchase of his blood, and the travail of his soul; they are united to him, and are built upon him; they are interested in his preparations and prayers, and are in some sense saved already; and yet there are some things which God has fixed as means, and made absolutely necessary, and without which none can be saved: as for instance, none can be saved without regeneration; without this there is no meetness for heaven; nor does it appear without it that any have a right unto it; nor can an unregenerate man have any true hope of it; wherefore such as are chosen and redeemed, are regenerated by the Spirit of God: so likewise without holiness no man shall see the Lord; this is fixed in the decree of God, and is necessary to the enjoyment of him, and to fellowship with angels and glorified saints; wherefore the Lord sanctifies all he saves: particularly none without faith in Christ will ever be saved; nor is this inconsistent with salvation being by grace, seeing it is not considered as a cause of salvation, but is itself a gift of grace; it lies in receiving things at the hand of God, it admits of no glorying in men, and gives all the glory of salvation to God and Christ, and free grace; and this is necessary because God has appointed it, and therefore he bestows it on all he means to save: to which may be added, that without perseverance in faith and holiness, there is no salvation; wherefore the Lord puts his grace into the hearts of his people to cause them to persevere; he encompasses them with his power, upholds them with the right hand of his righteousness, and preserves them from Satan, and from a final and total falling away.