19 Do not quench the Spirit. 20 Do not despise prophecies. 21 Test all things; hold fast what is good. 22 Abstain from every form of evil. (1 Thessalonians 5:19–22, NKJV)
The Holy Spirit guided the apostles of Christ into all truth by revealing to them the mind of God and giving to them the inspiration to speak it and write it (Jno. 16:13-15; 1 Cor. 2:10-13; 2 Pet. 1:20-21). We rejoice in the Spirit’s work and His word. We will not stifle the Holy Spirit’s word and work by minimizing the divine blessings we have as a result His work. Neither will we hold God’s prophecies in contempt. We are strengthened by knowing the Spirit’s prophecies are fulfilled in Jesus Christ (Acts 3:22-26). The Spirit expects us to test all things by the word He gave us. Consequently, we can cling to good things and refrain from evil in every form it takes. Christians do not refuse the Spirit and the word He gave us. Instead, we walk in the Spirit, are led by the Spirit and live in the Spirit by letting His word define and direct our lives (Gal. 5:16, 18, 25).
15 Beware of false prophets, who come to you in sheep’s clothing, but inwardly they are ravenous wolves. 16 You will know them by their fruits. Do men gather grapes from thornbushes or figs from thistles? 17 Even so, every good tree bears good fruit, but a bad tree bears bad fruit. 18 A good tree cannot bear bad fruit, nor can a bad tree bear good fruit. 19 Every tree that does not bear good fruit is cut down and thrown into the fire. 20 Therefore by their fruits you will know them. (Matthew 7:15–20, NKJV)
Are you sure your preacher is preaching the truth? How do you know? Jeremiah warned of prophets who “prophesy lies in my name” by speaking “the deceit of their heart” (Jer. 14:14). These two-legged wolves in sheep’s clothing continue to devour God’s flock by speaking error in the name of God. When someone speaks on behalf of God we must test what is said to be sure it is indeed from God. Our measuring stick is inspired Scripture, including what the apostles taught (Acts 17:11-12; 1 Jno. 4:1, 6). You see, it does matter what is taught and what is believed. If doctrine doesn’t matter, then why does Jesus warn us of the wolves?