Special miracles - Miracles that were remarkable; that were not common, or that were very unusual (οὐ τὰς τυχών ou tas tuchōn). This expression is Classical Greek. Thus, Longinus says of Moses that he was no common man - οὐχ ̓ ὁ τύχων ἀνήρ ouch ho tuchōn anēr.

God wrought special miracles - Δυναμεις τε ου τας τυχαυσας, Miracles of no ordinary kind, i.e. extraordinary miracles.

And God wrought special miracles by the hands of Paul. For the confirmation of the doctrine which he preached, and of his mission, as an apostle; and these were not any sort of miracles, common and vulgar ones, and much less things of chance, and what were merely accidental, as the word may signify; but they were rare and uncommon ones, and in which there was a visible display of the power of God; to whom as the efficient cause they are ascribed, the apostle being only an instrument God made use of.

Special (οὐ τὰς τυχούσας)

A peculiar expression. Lit., not usual or common, such as one might fall in with frequently.

And God wrought special miracles by the hands of Paul:

19:11,12 God wrought special miracles. If miracles are wrought, it is always God's work, and he can work them as he wills. In this case, in order to magnify the name of his preacher, he left his power go with articles that were carried from Paul to the sick. The Lord, in his wisdom, can make use of any instrument he chooses.

19:11 Special miracles - Wrought in a very uncommon manner.

11, 12. God wrought special-no ordinary

miracles by the hands of Paul-implying that he had not been accustomed to work such.

19:8-12 When arguments and persuasions only harden men in unbelief and blasphemy, we must separate ourselves and others from such unholy company. God was pleased to confirm the teaching of these holy men of old, that if their hearers believed them not, they might believe the works.