A.T. Robertson Commentary Mark 6:2

"And when the sabbath was come, he began to teach in the synagogue: and many hearing him were astonished, saying, Whence hath this man these things? and, What is the wisdom that is given unto this man, and [what mean] such mighty works wrought by his hands?" — Mark 6:2 (ASV)

Began to teach (ηρξατο διδασκειν). As was now his custom in the synagogue on the sabbath. The ruler of the synagogue (αρχισυναγωγος, see Mt 5:22) would ask some one to speak whensoever he wished. The reputation of Jesus all over Galilee opened the door for him. Jesus may have gone to Nazareth for rest, but could not resist this opportunity for service.

Whence hath this man these things? (Ποθεν τουτω ταυτα; ). Laconic and curt,

Whence these things to this fellow? With a sting and a fling in their words as the sequel shows. They continued to be amazed (εξεπλησσοντο, imperfect tense passive). They challenge both the apparent

wisdom (σοφια) with which he spoke and

the mighty works or powers (α δυναμεις)

such as those (τοιαυτα)

coming to pass (γινομενα, present middle participle, repeatedly wrought)

by his hands (δια των χειρων). They felt that there was some hocus-pocus about it somehow and somewhere. They do not deny the wisdom of his words, nor the wonder of his works, but the townsmen knew Jesus and they had never suspected that he possessed such gifts and graces.