Theophylact of Ohrid — as excerpted in the Catena Aurea on Mark 6:30-34

“So do thou not wait for Christ till He Himself call you, but outrun Him, and come before Him. There follows, And Jesus when he came out saw much people, and was moved with compassion towards them, because they were as sheep having no shepherd. The Pharisees being ravening wolves did not feed the sheep, but devoured them; for which reason they gather themselves to Christ, the true Shepherd, who gave them spiritual food, that is, the word of God. Wherefore it goes on, And he began to teach them many things. For seeing that those who followed Him on account of His miracles were tired from the length of the way, He pitied them, and wished to satisfy their wish by teaching them.”