God’s Spirit lives in the heart of every child of God and He promises to never, ever forsake His own. It’s permanent and unchanging. On the other hand, being “filled with the Spirit” (Ephesians 5:18) is a repetitive process that happens on a continuous basis as we choose to allow it. In other words, it’s not happening when we don’t choose to allow it, even though He doesn’t ever move out of our lives.
It is possible to live life under the influence of the Holy Spirit continually. It starts with our conscious choice to allow ourselves to be filled, but it really happens as God takes the initiative to influence our lives, which He loves to do!
Sometimes the shortest pieces of Scripture can be the most profound for believers. For example, when Paul says,
My brother, five years older than me, often had a knack for helping me find courage as a kid. His mere presence in times when I felt threatened often gave me that “my big brother will beat you up” feeling. As a believer, God fills this role for me spiritually. I know that I live under His constant protection in at least two senses.
When my wife and I were going through a seven-year period of secondary infertility, we often found ourselves completely unable to understand what God was doing in our lives. Our prayers were seemingly going unanswered and we often wondered what God was trying to teach us. I sometimes found myself wondering if we were praying for the right answer.