Since the beginning of time, the Holy Spirit has been working in the lives of God’s children. We see Him in the Old Testament coming upon certain individuals for reasons of prophesying, increasing a leader’s strength, giving wisdom to judges and kings, and more. These Spirit appearances differ greatly from New Testament times when we see the Holy Spirit coming with power to equip all believers and to dwell in each, never to depart again.
There are far more places in the New Testament where we see the Holy Spirit at work than in the Old. Jesus told us that when the Spirit came, He would be our Helper and the Spirit of Truth. Jesus also said He (the Spirit) would teach us and remind us of what He (Jesus) had said. The Spirit would convict the world of sin, God’s righteousness, and the coming judgment. His continual presence would be undeniable.
True to the word of Jesus, when the Holy Spirit came it was not in secret—but rather with tongues of fire and power. His arrival brought about a most dramatic change in His disciples. Almost immediately, those tongues of fire turned into people on fire for telling the world about Jesus.
Indwelt by the Spirit, the twelve disciples were able to heal the sick, perform all kinds of miracles and stand up to the then-world leaders. They knew in their hearts that these leaders were not the ones actually in charge: it was God! The Holy Spirit demonstrated His power in these ordinary men in such a way that no one could deny.
Scripture tells us that God never changes and that Jesus is the same yesterday, today and forever. Since the Holy Spirit is the third person of the triune Godhead, we also know that He too never changes and will remain the same throughout all eternity. His power within us today is the same as it was in both the Old and the New Testaments.
Therefore, we need to remind ourselves continually of this great truth. Daily, we should ask the Holy Spirit to fill us to overflowing, to acknowledge His place in this world and consider what God has given Him to do in our lives. We must rely on His wisdom and not our own. We must believe in His miracles and ask for the boldness to stand up against the world. We continually look for demonstrations of His power that are clearly visible as we tell others about Jesus and His salvation.