Asking questions is powerful! Here Paul challenges the Galatians on a central point of their faith. He wants to know how they received the Holy Spirit – was it by works or by faith.
This is such a pivotal question, and it is also a rhetorical question, Paul knows that the Galatians really know the answer already, they have just forgotten it!
If we received the Holy Spirit by our own works in fulfilling the law, then Jesus’ death is worth nothing. The Holy Spirit could not indwell us as we could not be filled with him if we still had unclean hearts, and we would not live in the power of the Spirit as all works would continue to be done in our own strength alone.
If we received the Holy Spirit by faith, then Jesus’ death on the cross was effective at cancelling sin. He was also physically resurrected from the dead and ascended into heaven from where he sent the Holy Spirit who played a vital part in our accepting Jesus as Saviour. When we were baptized in the Holy Spirit we were empowered to live for God and serve him, and to perform the good works that he had prepared in advance for us to do.
It is not by doing good works that we receive the Holy Spirit, but by receiving the Holy Spirit that we are able to do good works!
Lord Jesus, thank you that baptize us in the Holy Spirit whom we can only receive through faith and believing in your promises. Amen.