permission

Pls i have in mind of compiling devotional and publishing using articles from Tozer, Murray, Spurgeon, J C Ryle. etc. Please do anyone know how i can obtain permission for this.

Brother,

If the article is not for sale then that is easy, you should be able to use all of the above speakers, especially if you footnote where you source the information from. Most of Murray's, Spurgeon's and Ryle's writings are in the public domain so they should be fine even for a for profit situation.