As I have watched … so will I watch, etc. The allusion is to the twofold commission given to the prophet (Jeremiah 1:10), which was partly to pluck up and to destroy, partly to build and to plant. Jehovah has hitherto been "watchful" (another point of contact with Jeremiah 1:1-19.
; see on Jeremiah 1:12) over the fulfilment of the destructive prophecies; he will now be equally zealous for that of the promises of regeneration.