(16) Rejoice evermore.--The remaining commands are more simply spiritual, and hardly form part of the same paragraph as 1Thessalonians 5:12-15, which related to discipline; though from 1Thessalonians 5:19 et seq. we see that St. Paul was still addressing the Church in its corporate capacity, not only the individual members. The Christian who remains in sadness and depression really breaks a commandment: in some direction or other he mistrusts God--His power, providence, forgiveness. The command is specially good for a persecuted Church like that of Thessalonica (Matthew 5:10-12).

Verse 16. - Rejoice evermore; or, rejoice always (R.V.). Joy is that feeling of delight which arises from the possession of present good, or from the anticipation of future happiness; and in both respects the believer has abundant reason for constant joy. He possesses the blessedness of forgiveness and the sure prospect of eternal life, and he has the consciousness that all things work together for good to them that love God (Romans 8:28). God wishes his people to be happy, and does not suffer them to be indifferent to their own peace. He commands them to rejoice, yea, to rejoice evermore. "Rejoice in the Lord always, and again I say, Rejoice" (Philippians 4:4).

5:16-22 We are to rejoice in creature-comforts, as if we rejoiced not, and must not expect to live many years, and rejoice in them all; but if we do rejoice in God, we may do that evermore. A truly religious life is a life of constant joy. And we should rejoice more, if we prayed more. Prayer will help forward all lawful business, and every good work. If we pray without ceasing, we shall not want matter for thanksgiving in every thing. We shall see cause to give thanks for sparing and preventing, for common and uncommon, past and present, temporal and spiritual mercies. Not only for prosperous and pleasing, but also for afflicting providences, for chastisements and corrections; for God designs all for our good, though we at present see not how they tend to it. Quench not the Spirit. Christians are said to be baptized with the Holy Ghost and with fire. He worketh as fire, by enlightening, enlivening, and purifying the souls of men. As fire is put out by taking away fuel, and as it is quenched by pouring water, or putting a great deal of earth upon it; so we must be careful not to quench the Holy Spirit, by indulging carnal lusts and affections, minding only earthly things. Believers often hinder their growth in grace, by not giving themselves up to the spiritual affections raised in their hearts by the Holy Spirit. By prophesyings, here understand the preaching of the word, the interpreting and applying the Scriptures. We must not despise preaching, though it is plain, and we are told no more than what we knew before. We must search the Scriptures. And proving all things must be to hold fast that which is good. We should abstain from sin, and whatever looks like sin, leads to it, and borders upon it. He who is not shy of the appearances of sin, who shuns not the occasions of it, and who avoids not the temptations and approaches to it, will not long keep from doing sin.Rejoice evermore. Not in a carnal, but in a spiritual way, with joy in the Holy Ghost; and which arises from a view of pardon by the blood of Christ, of justification by his righteousness, and atonement by his sacrifice; not in themselves, as the wicked man rejoices in his wickedness, and the hypocrite and formalist in his profession of religion, and the reputation he gains by it; and the Pharisee and legalist in his morality, civility, negative holiness, and obedience to the rituals of the law; for such rejoice in their boastings, and all such rejoicing is evil; but in the Lord Jesus Christ, in the greatness, fitness, fulness, and glory of his person, in his blood, righteousness, and sacrifice, in what he is in himself, and is made unto his people, and in what he has done, and is still doing for them, and particularly in the salvation he has wrought out; and not in the things of this life, and the attainments of it, either of body, or of mind, or of estate, as in strength, wisdom, or riches; but in things spiritual, that our names are written in heaven, and we are redeemed by the blood of Christ, and called by his grace, and shall be glorified together with him; and not only in prosperity, but in adversity, since all things work together for good, and afflictions serve for the exercise of grace; and especially, since to suffer reproach and persecution for the sake of Christ, and his Gospel, is a great honour, and the Spirit of God, and of glory, rests on such, and great will be their reward in heaven: and there is always reason, and ever a firm ground and foundation for rejoicing with believers, let their circumstances or their frames be what they will; since God, their covenant God, is unchangeable, and his love to them is from everlasting to everlasting invariably the same; the covenant of grace, which is ordered in all things, and sure, is firm and immovable; and Jesus, the Mediator of it, is the same today, yesterday, and for ever.