The word(s) "edge" appears 175 time(s) in 163 verse(s) in Quran in Mohsin Khan translation.

(11) It is He Who has sent down to you (Muhammad صلى الله عليه وسلم) the Book (this Qur'an). In it are Verses that are entirely clear, they are the foundations of the Book [and those are the Verses of Al-Ahkam (commandments), Al-Fara'id (obligatory duties) and Al-Hudud (legal laws for the punishment of thieves, adulterers)]; and others not entirely clear. So as for those in whose hearts there is a deviation (from the truth) they follow that which is not entirely clear thereof, seeking Al-Fitnah (polytheism and trials), and seeking for its hidden meanings, but none knows its hidden meanings save Allah. And those who are firmly grounded in knowledge say: "We believe in it; the whole of it (clear and unclear Verses) are from our Lord." And none receive admonition except men of understanding. (Tafsir At-Tabari).

(12) Allah bears witness that La ilaha illa Huwa (none has the right to be worshipped but He), and the angels, and those having knowledge (also give this witness); (He always) maintains His creation in Justice. La ilaha illa Huwa (none has the right to be worshipped but He), the All-Mighty, the All-Wise.

(13) Truly, the religion with Allah is Islam. Those who were given the Scripture (Jews and Christians) did not differ except, out of mutual jealousy, after knowledge had come to them. And whoever disbelieves in the Ayat (proofs, evidence, verses, signs, revelations, etc.) of Allah, then surely, Allah is Swift in calling to account.

(14) This is a part of the news of the Ghaib (unseen, i.e. the news of the past nations of which you have no knowledge) which We reveal to you (O Muhammad صلى الله عليه وسلم). You were not with them, when they cast lots with their pens as to which of them should be charged with the care of Maryam (Mary); nor were you with them when they disputed.

(15) Then whoever disputes with you concerning him ['Îsa (Jesus)] after (all this) knowledge that has come to you [i.e. 'Îsa (Jesus) being a slave of Allah, and having no share in Divinity], say: (O Muhammad صلى الله عليه وسلم) "Come, let us call our sons and your sons, our women and your women, ourselves and yourselves - then we pray and invoke (sincerely) the Curse of Allah upon those who lie."

(16) Verily, you are those who have disputed about that of which you have knowledge. Why do you then dispute concerning that of which you have no knowledge? It is Allah Who knows, and you know not.

(17) Yes, whoever fulfils his pledge and fears Allah much; verily, then Allah loves those who are Al-Muttaqun (the pious - See V.2:2).

(18) It is not (possible) for any human being to whom Allah has given the Book and Al-Hukm (the knowledge and understanding of the laws of religion) and Prophethood to say to the people: "Be my worshippers rather than Allah's." On the contrary (he would say): "Be you Rabbaniyyun (learned men of religion who practise what they know and also preach others), because you are teaching the Book, and you are studying it."

(19) And that He might test the hypocrites, it was said to them: "Come, fight in the Way of Allah or (at least) defend yourselves." They said: "Had we known that fighting will take place, we would certainly have followed you." They were that day, nearer to disbelief than to Faith, saying with their mouths what was not in their hearts. And Allah has full knowledge of what they conceal.

(20) (And remember) when Allah took a covenant from those who were given the Scripture (Jews and Christians) to make it (the news of the coming of Prophet Muhammad صلى الله عليه وسلم and the religious knowledge) known and clear to mankind, and not to hide it, but they threw it away behind their backs, and purchased with it some miserable gain! And indeed worst is that which they bought.