Say not, I am a child; do not plead excuses. Thou shalt go: this is God's answer to Jeremiah, in respect of his sense of his own inability. This may be by way of command, and then it is a check to his timorousness; Thou shalt go, therefore draw not back. Or by way of promise, and then it is a satisfactory answer to his excuse, as both proceeded from a sense of his own insufficiency: q.d. Fear not, I will make thee eloquent and courageous. To all: this relates either to persons or things. To all, i.e. to all persons to whom I shall send thee; thou shalt balk none: see Revelation 10:11. Or, upon all, so is the Hebrew; and then it is, Thou shalt go upon all errands and messages that I shall send thee. See Isaiah 55:11 Acts 26:16.
Related Commentaries of Jeremiah 1:7
Jeremiah 1:7
7 But the LORD said unto me, Say not, I am a child: for thou shalt go to all that I shall send thee, and whatsoever I command thee thou shalt speak.