John 16:29-30 (ESV):
29 His disciples said, “Ah, now you are speaking plainly and not using figurative speech! 30 Now we know that you know all things and do not need anyone to question you; this is why we believe that you came from God.”
John 21:17 (ESV):
17 He said to him the third time, “Simon, son of John, do you love me?” Peter was grieved because he said to him the third time, “Do you love me?” and he said to him, “Lord, you know everything; you know that I love you.” Jesus said to him, “Feed my sheep.
Did the disciples believe that Jesus was omniscient?
Related question: Did Jesus exercise omniscience or a spiritual gift in Matthew 9:4?