21 Now when all the people were baptized, Jesus also had been baptized, and was praying. The sky was opened,
Luke 3:21 Cross References - WEB
Matthew 3:13-17
13 Then Jesus came from Galilee to the Jordan to John, to be baptized by him.
14 But John would have hindered him, saying, “I need to be baptized by you, and you come to me?”
15 But Jesus, answering, said to him, “Allow it now, for this is the fitting way for us to fulfill all righteousness.” Then he allowed him.
16 Jesus, when he was baptized, went up directly from the water: and behold, the heavens were opened to him. He saw the Spirit of God descending as a dove, and coming on him.
17 Behold, a voice out of the heavens said, “This is my beloved Son, with whom I am well pleased.”
Matthew 14:23
23 After he had sent the multitudes away, he went up into the mountain by himself to pray. When evening had come, he was there alone.
Mark 1:9-11
Luke 5:16
16 But he withdrew himself into the desert, and prayed.
Luke 9:18
18 As he was praying alone, the disciples were with him, and he asked them, “Who do the multitudes say that I am?”
Luke 9:28-29
John 1:32-34
32 John testified, saying, “I have seen the Spirit descending like a dove out of heaven, and it remained on him.
33 I didn’t recognize him, but he who sent me to baptize in water said to me, ‘On whomever you will see the Spirit descending and remaining on him is he who baptizes in the Holy Spirit.’
34 I have seen, and have testified that this is the Son of God.”