When Paul told the Ephesians Christians to “be filled with the Spirit,” he was talking about Spirit-empowered worship:
And do not get drunk with wine, for that is debauchery, but be filled with the Spirit, addressing one another in psalms and hymns and spiritual songs, singing and making melody to the Lord with your heart, giving thanks always and for everything to God the Father in the name of our Lord Jesus Christ. (Ephesians 5:18–20)
Be careful as you read these verses. Don’t let your familiarity with it or your experience-based preconceptions about worship styles or other things cause you to dodge the punch the Holy Spirit intends to land here.
Paul is saying, don’t be intoxicated with alcohol, but be intoxicated with God! His words confront each of us with the penetrating question, “Are you intoxicated with God?” Does our heart so overflow with love for God that our heart, whether light or heavy, can’t help but sing, both to God and to one another? No matter what our circumstances, are we overflowing with thanks to God?
If not, we need to be filled with the Holy Spirit because we are not worshipfully enjoying God according to the grace available to us. That means we are not glorifying God as we ought, and are we not experiencing satisfaction in God like we might.