44 Then Jesus cried out and said, “He who believes in Me, believes not in Me but in Him who sent Me. 45 And he who sees Me sees Him who sent Me. (John 12:44–45, NKJV)
You may think Jesus always spoke in a soft, unassuming voice. If so, you would be mistaken. Many times, He loudly proclaimed His message. He explained that He did not originate His teachings, they came from Him who sent Jesus to the world (John 8:26-30). Jesus spoke what the Father commanded Him to speak (John 12:49). In this sense, He is the Apostle of our confession (Hebrews 3:1). So, to believe in Jesus is to believe in the Father. One cannot believe in God the Father and simultaneously reject Jesus as the Son of God. Jesus has seen the Father and declared Him to the world (John 1:18). Indeed, Jesus shares the same divine nature as the Father. He and the Father are one in nature and purpose, perfectly united in their deity and all that entails (John 10:30). The Son is the image of the invisible God, the exact image of God’s real nature (Colossians 1:15; Hebrews 1:3). No doubt this explain Christ’s amazement when Philip said, “Lord, show us the Father, and it is sufficient for us.” Jesus said to him, “Have I been with you so long, and yet you have not known Me, Philip? He who has seen Me has seen the Father; so how can you say, ‘Show us the Father?’” (John 14:8-9). You must look at Jesus and believe in Him to see and believe in God. After all, Jesus is Immanuel (“God with us”).