Verse from Romans

你们接受的，不是奴仆的灵，使你们仍旧惧怕；你们接受的，是使人成为嗣子的灵，使我们呼叫“阿爸、父”。(罗马书 8:15)

For you have not received a spirit of slavery leading to fear again, but you have received a spirit of adoption as sons by which we cry out, "Abba! Father!" (Romans 8:15)

God may be the sovereign Lord of the universe, but through His Son, God became as approachable as any doting human father. 

Jesus came to demonstrate that a perfect and holy God welcomes pleas for help from a widow with two mites and a Roman centurion and a miserable publican and a thief on a cross. He is our daddy God, our Father in heaven.