The Bible does not limit God to masculine images. God as Father is not the only image in Scripture. Faithfulness to the complete biblical revelation leads us to include other images. Opening our minds to new ideas can be scary at first.

Growing up I learned that God is Spirit… But I also learned to speak of God as “he,” “Father,” and “King.” I could not picture a Spirit, so these words naturally led me to imagine God as a male human being. In my mind I pictured God as a kind, powerful, and strict male authority. [Later] my concept of God matured and expanded. I still use masculine terms, however, to refer to God. [Still later, God helped] me understand the inadequacy of our masculine language for God.”

from In Whose Image? God and Gender