1 Thessalonians 5:16-20

Verse 16

Rejoice evermore - Be always happy; the religion of Christ was intended to remove misery. He that has God for his portion may constantly exult. Four MSS. of good note add εν τῳ Κυριῳ, in the Lord: Rejoice in the Lord evermore.
Verse 17

Pray without ceasing - Ye are dependent on God for every good; without him ye can do nothing; feel that dependence at all times, and ye will always be in the spirit of prayer; and those who feel this spirit will, as frequently as possible, be found in the exercise of prayer.
Verse 18

In every thing give thanks - For this reason, that all things work together for good to them that love God; therefore, every occurrence may be a subject of gratitude and thankfulness. While ye live to God, prosperity and adversity will be equally helpful to you.

For this is the will of God - That ye should be always happy; that ye should ever be in the spirit of prayer; and that ye should profit by every occurrence in life, and be continually grateful and obedient; for gratitude and obedience are inseparably connected.
Verse 19

Quench not the Spirit - The Holy Spirit is represented as a fire, because it is his province to enlighten and quicken the soul; and to purge, purify, and refine it. This Spirit is represented as being quenched when any act is done, word spoken, or temper indulged, contrary to its dictates. It is the Spirit of love, and therefore anger, malice, revenge, or any unkind or unholy temper, will quench it so that it will withdraw its influences; and then the heart is left in a state of hardness and darkness. It has been observed that fire may be quenched as well by heaping earth on it as by throwing water on it; and so the love of the world will as effectually grieve and quench the Spirit as any ordinary act of transgression.

Every genuine Christian is made a partaker of the Spirit of God; and he who has not the spirit of Christ is none of his. It cannot be the miraculous gifts of the Spirit which the apostle means, for these were given to few, and not always; for even apostles could not work miracles when they pleased; but the direction in the text is general, and refers to a gift of which they were generally partakers.
Verse 20

Despise not prophesyings - Do not suppose that ye have no need of continual instruction; without it ye cannot preserve the Christian life, nor go on to perfection. God will ever send a message of salvation by each of his ministers to every faithful, attentive hearer. Do not suppose that ye are already wise enough; you are no more wise enough than you are holy enough. They who slight or neglect the means of grace, and especially the preaching of God's holy word, are generally vain, empty, self-conceited people, and exceedingly superficial both in knowledge and piety.
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