The word(s) "therefore" appears 67 time(s) in 66 verse(s) in Quran in Abdullah Yusuf Ali translation.

(31) And thou hadst not expected that the Book would be sent to thee except as a Mercy from thy Lord: therefore lend not thou support in any way to those who reject (Allah's Message).

(32) O My servants who believe! truly, spacious is My Earth: therefore serve ye Me - (and Me alone)!

(33) Behold! A party among them said: "Ye men of Yathrib! ye cannot stand (the attack)! therefore go back!" And a band of them ask for leave of the Prophet, saying, "Truly our houses are bare and exposed," though they were not exposed they intended nothing but to run away.

(34) In order that thou mayest admonish a people, whose fathers had received no admonition, and who therefore remain heedless (of the Signs of Allah).

(35) Thou canst but admonish such a one as follows the Message and fears the (Lord) Most Gracious, unseen: give such a one, therefore, good tidings, of Forgiveness and a Reward most generous.

(36) And (Jesus) shall be a Sign (for the coming of) the Hour (of Judgment): therefore have no doubt about the (Hour), but follow ye Me: this is a Straight Way.

(37) When Jesus came with Clear Signs, he said: "Now have I come to you with Wisdom, and in order to make clear to you some of the (points) on which ye dispute: therefore fear Allah and obey me.

(38) "This, because ye used to take the Signs of Allah in jest, and the life of the world deceived you:" (From) that Day, therefore, they shall not be taken out thence, nor shall they be received into Grace.

(39) therefore patiently persevere, as did (all) messengers of inflexible purpose; and be in no haste about the (Unbelievers). On the Day that they see the (Punishment) promised them, (it will be) as if they had not tarried more than an hour in a single day. (Thine but) to proclaim the Message: but shall any be destroyed except those who transgress?

(40) therefore, when ye meet the Unbelievers (in fight), smite at their necks; At length, when ye have thoroughly subdued them, bind a bond firmly (on them): thereafter (is the time for) either generosity or ransom: Until the war lays down its burdens. Thus (are ye commanded): but if it had been Allah's Will, He could certainly have exacted retribution from them (Himself); but (He lets you fight) in order to test you, some with others. But those who are slain in the Way of Allah,- He will never let their deeds be lost.