Then he said to them, “These are the words I spoke to you while I was still with you. I told you that everything written about me in Moses’ Teachings, the Prophets, and the Psalms had to come true.”
At first Jesus’ disciples didn’t know what these prophecies meant. However, when Jesus was glorified, the disciples remembered that these prophecies had been written about him. The disciples remembered that they had taken part in fulfilling the prophecies.
However, the helper, the Holy Spirit, whom the Father will send in my name, will teach you everything. He will remind you of everything that I have ever told you.
God has fulfilled the promise for us, their descendants, by bringing Jesus back to life. This is what Scripture says in the second psalm: ‘You are my Son. Today I have become your Father.’