Christ was called 'Lord' in the events of performing miracles. St Peter, after walking with Him on the water, was afraid when he saw the boisterous wind. He started to sink so he cried out, saying: "'Lord, save me! 'And immediately Jesus stretched out His hand and caught him" (Matt. 14:30,31), "then those who were in the boat came and worshipped Him, saying, 'Truly You are the Son of God" (Matt. 14:33). We can see here that the title 'Lord' was used at the moment of a miracle. Then worshipping Him and confessing that He was the Son of God happened immediately after, as an indication of His Divinity.