Matthew 15:35
He told the crowd to sit down on the ground.
Matthew 14:19-21
Then he commanded the multitudes to sit down on the grass. And taking the five loaves and the two fish, and looking up to heaven, he blessed and broke and gave the loaves to the disciples; and the disciples gave them to the multitudes.
Mark 6:39-40
Then he commanded them to make them all sit down in groups on the green grass.
Luke 9:14-16
For there were about five thousand men. And he said to his disciples, "Make them sit down in groups of about fifty each."
John 6:10
Jesus said, "Make the people sit down." Now there was much grass in the place; so the men sat down, in number about five thousand.