Why is God called our Father in the Bible?

The title of God as 'Father' emphasizes His relational aspect with believers. In 2 Corinthians 6:18, the promise, 'I will be a father unto you, and you shall be my sons and daughters,' signifies a deep, covenantal relationship characterized by care and commitment. God as our Father means He is the source of our identity and security, safeguarding us as a loving parent would. This establishes not just a formal relationship, but one filled with affection and responsibility, reinforcing the believer's position in Christ and their assurance of eternal fellowship.