S – And don’t grieve God’s Holy Spirit. You were sealed by him for the day of redemption

Ephesians 4:30 CSB

O – Commentaries:

The fact that the Holy Spirit may be grieved points to His personality. His seal of a believer remains until the day of redemption, the time that a believer receives his new body 

“Ephesians,” in The Bible Knowledge Commentary: An Exposition of the Scriptures

Believers must not alienate God’s Holy Spirit, who identifies them as belonging to God (cp. Mark 3:29; Acts 5:3–5, 9; 1 Thes 4:8; Heb 6:4–8). • has identified you as his own (or has put his seal on you)

 New Living Translation Study Bible 

Grieving” the *Spirit reflects a serious offense; in Isaiah 63:10 (one of only two Old Testament texts to use the title “holy spirit”), it refers to Israel’s rebellion in the wilderness, which led to their rejection by God. Similarly, Israel’s rebellion against the Spirit led Moses to sin with his mouth according to Psalm 106:33

The IVP Bible Background Commentary: New Testament

A – The Holy Spirit is a person.  Grieving the Holy Spirit is similar to a parent who deeply loves their child. rebellion, insubordination, words, and actions that don’t honor or reflect the parent’s character, will bring distress and sorrow.  The parent will want the best and so much more for their child but knows the painful correction and growth that is necessary.

R – Lord, I know there are times when I bring grief to you because I want to do things my own way.  I don’t want to do this.  Instead of rebelling against you or doing things my way, help me to walk with your Holy Spirit and not against Him.