I will stand upon my watch, and set me upon the tower, and will watch to see what he will say unto me, and what I shall answer when I am reproved. I will stand upon my watch - The prophets are always represented as watchmen, watching constantly for the comfort, safety, and welfare of the people; and watching also to receive information from the Lord: for the prophetic influence was not always with them, but was granted only at particular times, according to the will of God. When, in doubtful cases, they wished to know what God was about to do with the country, they retired from society and gave themselves to meditation and prayer, waiting thus upon God to hear what he would say In them.
What he will say unto me - בי bi, In me - in my understanding and heart.
And what I shall answer when I am reproved - What I shall say to God in behalf of the people; and what the Lord shall command me to say to the people. Some translate, "And what he will answer for my conviction." Or, "what shall be answered to my pleading."