—the knowledge that enables one to distinguish between truth and falsehood.

“and whoever follows me” means whoever believes in me and affirms my truthfulness. The phrase may be construed as being conjoined to the implied subject of “I invite,” so that the sense is: “I invite to Allah upon clear insight, and whoever follows me likewise invites to Allah upon clear insight.” It may also be taken as conjoined to the separate pronoun “I,” yielding the sense: “Both I and my followers are upon clear insight.” In fact, the conjunction encompasses both meanings: his followers are the people of clear insight who call others to Allah.

“And exalted is Allah”: I declare Allah far above and sanctify Him from having any partner—whether in His dominion or in being worshipped in truth by anyone besides Him.

Overall meaning of the verse: Allah commands His Messenger to inform the people that his way and practice is to call to the testimony that there is no deity but Allah upon knowledge, certainty, and proof; that everyone who follows him calls to the very same upon knowledge, certainty, and proof; and that he and his followers declare Allah free of any partner in His dominion or in His right to be worshipped, disavowing anyone who associates others with Him, even if that person were a close relative.

Relevance of the verse to this chapter: Allah states that the path of the Messenger and his followers is to call to the testimony that there is no deity but Allah with knowledge of what they are calling to. This establishes the obligation to invite to that testimony, which is the subject of the chapter.

Lessons derived from the verse:
1- Calling people to the testimony that there is no deity but Allah is the way of the Messenger and his followers.
2- A caller to Allah must possess knowledge of that to which he invites and knowledge of that which he forbids.
3- The verse draws attention to the necessity of sincerity in daʿwah: the caller must have no objective except