Whereupon - Whence ὅθεν hothen. Since the proof of his being the Messiah, of his resurrection, and of his calling me to this work, was so clear and plain, I deemed it my duty to engage without delay in the work.
I was not disobedient - I was not incredulous or unbelieving; I yielded myself to the command, and at once obeyed. See Acts 9:6; compare Galatians 1:16.
Unto the heavenly vision - To the celestial appearance, or to the vision which appeared to me from heaven. I did not doubt that this splendid appearance Acts 26:13 was from heaven, and I did not refuse to obey the command of him who thus appeared to me. He knew it was the command of God his Saviour, and he gave evidence of repentance by yielding obedience to it at once.