We don't know Christ by what he did in His earthly ministry when He was not sent but unto the lost sheep of the house of Israel (Matthew 15:24 KJV) as a minister of the Circumcision for the truth of God, to confirm the promises made unto the fathers (Romans 15:8 KJV).
We know Him as the risen, glorified Lord who appeared to the apostle Paul (Acts 26:16 KJV, 2 Timothy 1:8-10 KJV) with a mystery gospel (Romans 16:25-27 KJV, 1 Corinthians 2:6-8 KJV, Galatians 1:11-12 KJV, 1 Corinthians 15:1-4 KJV), doctrine (1 Timothy 1:3 KJV, 2 Timothy 1:13 KJV, 2 Timothy 2:2 KJV 2 Timothy 4:2 KJV , duty (1 Corinthians 1:21 KJV, 1 Corinthians 3:10-15 KJV, 2 Timothy 2:15 KJV) and destination (Ephesians 2:6 KJV, Philippians 3:20-21 KJV, Colossians 3:1-4 KJV to us (Romans 11:13 KJV, Ephesians 3:1-9 KJV), the church, which is Christ's Body (Ephesians 1:22-23 KJV, Colossians 1:24 KJV).