What does Ephesians 1:9-14 say about God's purpose?

In Ephesians 1:9-14, Paul articulates that God has revealed His mysterious will, which centers around His good pleasure to gather all things in Christ, encompassing both heavens and earth. This passage also highlights the doctrine of predestination, confirming that believers were chosen and sealed with the Holy Spirit as a guarantee of their inheritance. Such a purpose reflects God’s sovereignty, intentionality, and glory, affirming that salvation accomplishes His divine will and redemptive plan for His creation. This assures believers of their secure standing in Christ, orchestrated by God’s own design.