John 6:1-4

Some time after this, Jesus crossed to the far shore of the Sea of Galilee (that is, the Sea of Tiberias), and a great crowd of people followed him because they saw the signs he had performed by healing the sick. Then Jesus went up on a mountainside and sat down with his disciples. The Jewish Passover Festival was near.

Jesus crossed to the far shore of the Sea of Galilee (that is, the Sea of Tiberias) 
Mark 1:16  As Jesus walked beside the Sea of Galilee, he saw Simon and his brother Andrew casting a net into the lake, for they were fishermen. [also Matthew 4:18]
Luke 5:1  One day as Jesus was standing by the Lake of Gennesaret, [Sea of Galilee] the people were crowding around him and listening to the word of God.

because they saw the signs he had performed 
John 2:11  What Jesus did here in Cana of Galilee was the first of the signs through which he revealed his glory; and his disciples believed in him.
Matthew 12:38  Then some of the Pharisees and teachers of the law said to him, "Teacher, we want to see a sign from you."
John 2:23  Now while he was in Jerusalem at the Passover Festival, many people saw the signs he was performing and believed in his name.
John 4:48  "Unless you people see signs and wonders," Jesus told him, "you will never believe."
John 12:37  Even after Jesus had performed so many signs in their presence, they still would not believe in him.

Then Jesus went up on a mountainside and sat down with his disciples 
John 6:15  Jesus, knowing that they intended to come and make him king by force, withdrew again to a mountain by himself.

The Jewish Passover Festival was near 
John 11:55  When it was almost time for the Jewish Passover, many went up from the country to Jerusalem for their ceremonial cleansing before the Passover.
Mark 14:1  Now the Passover and the Festival of Unleavened Bread were only two days away, and the chief priests and the teachers of the law were scheming to arrest Jesus secretly and kill him.
Matthew 26:2  "As you know, the Passover is two days away--and the Son of Man will be handed over to be crucified."

[brackets are mine]

Scriptures taken from the Holy Bible, New International Version® NIV®, 
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