What does the Bible say about being adopted into God's family?

The concept of adoption in Scripture reflects how God, in His mercy and grace, brings sinners into His family. Ephesians 1:5 states that God predestines us unto the adoption of children by Jesus Christ according to His will. This means that our adoption is not based on our merit but solely on God's sovereign choice. Romans 8:15 further emphasizes this by stating that we receive the spirit of adoption, allowing us to cry out 'Abba, Father.' It is through this relationship that we come to recognize the loving and protective nature of God as our Father, who oversees everything concerning our lives.