I have set thee for a towre, and a fortresse] Or, To try have I set thee, as a fortresse; or, on a watch tower. Isaiah 23:13. and Isaiah 32:14. I the Lord have appointed thee my Prophet, (sufficiently supported and fenced, that thou needest not fear: Chap. 1. 18. and 15. 20.) as a sentinel standing on a watch-towre, Isa. 21. 5, 8. Hab. 2. 1. to espie and descrie the manners and courses of this people. that thou mayest know and try their way] To search and sift them: and to try them, as a founder doth metal; Psalms 66:10. that thou maist discover, what they are; sever the good from the bad; and work out of the bad their wickednesse, if it may be. Chap. 15. 19.