“Through the Spirit” is a reference to: through the power or ability of the Spirit.
- in obeying the truth through the Spirit
Since you have purified your souls in obeying the truth through the Spirit in sincere love of the brethren, love one another fervently with a pure heart, having been born again, not of corruptible seed but incorruptible, through the word of God which lives and abides forever,
1 Peter 1:22-23
The result of obeying the Gospel is being born again.
- having been born again, not of corruptible seed but incorruptible, through the word of God which lives and abides forever,
When you are born again, the Spirit bears witness with our spirit that we are a child of God.
The Spirit Himself bears witness with our spirit that we are children of God, Romans 8:16
JLB
It concerns me that so many people who identify as Christians don't understand the role of the Holy Spirit in our lives. Without the Holy Spirit a person needs an external control over their behavior. That is the function of the Old Testament law. When one has received the Holy Spirit -- born again, born from above -- then one has an internal guide to govern their behavior.
For example, take stealing. The Mosaic law commands people to not steal. There is the desire, but the law restrains the behavior. When governed by the Holy Spirit, there is no desire to steal. It's the opposite of wanting something for nothing, wanting to take from "your neighbor", greed, etc.