Some Christians don’t realize the Holy Spirit came at the moment of salvation to live permanently within them. And some who do realize this don’t understand who the Spirit is, how He works, or why His indwelling presence is so significant.
The Holy Spirit is a person—not simply a power or force—and He, along with the other two members of the Trinity, was involved in creation. We know this because when God created mankind, He said, “Let Us make man in Our image, according to Our likeness” (Gen. 1:26). The plural pronouns in this passage refer to God the Father, God the Son, and God the Spirit.
On the night before the crucifixion, Jesus told the disciples that the Father would send them a Helper who would be with them and in them forever (John 14:16-17). Even though the Lord would no longer be physically present, He wasn’t going to leave them to fend for themselves like orphans. Instead, He promised to come to them through the presence of His Spirit (John 14:18).
Because of the crucifixion, today the Spirit is our leader, guide, teacher, and comforter. His presence in us means that we are God’s children and that God has upheld His promise to always be with us.