Charles Spurgeon, 18th century English minister often called “The Prince of preachers” said:
“I do not know any more delightful expression towards God than to say to Him, “Abba, Father.” It is as much as to say—“My heart knows that You are my Father. I am as sure of it as I am sure I am the child of my earthly father! And I am more sure that you would deal more tenderly with me than that my earthly father would.”