The word(s) "covenant" appears 56 time(s) in 50 verse(s) in Quran in Abdullah Yusuf Ali translation.

(31) But when He did bestow of His bounty, they became covetous, and turned back (from their covenant), averse (from its fulfilment).

(32) So He hath put as a consequence hypocrisy into their hearts, (to last) till the Day, whereon they shall meet Him: because they broke their covenant with Allah, and because they lied (again and again).

(33) Allah hath purchased of the believers their persons and their goods; for theirs (in return) is the garden (of Paradise): they fight in His cause, and slay and are slain: a promise binding on Him in truth, through the Law, the Gospel, and the Qur'an: and who is more faithful to his covenant than Allah? then rejoice in the bargain which ye have concluded: that is the achievement supreme.

(34) Those who fulfil the covenant of Allah and fail not in their plighted word;

(35) But those who break the covenant of Allah, after having plighted their word thereto, and cut asunder those things which Allah has commanded to be joined, and work mischief in the land;- on them is the curse; for them is the terrible home!

(36) Fulfil the covenant of Allah when ye have entered into it, and break not your oaths after ye have confirmed them; indeed ye have made Allah your surety; for Allah knoweth all that ye do.

(37) Nor sell the covenant of Allah for a miserable price: for with Allah is (a prize) far better for you, if ye only knew.

(38) O ye Children of Israel! We delivered you from your enemy, and We made a covenant with you on the right side of Mount (Sinai), and We sent down to you Manna and quails:

(39) We had already, beforehand, taken the covenant of Adam, but he forgot: and We found on his part no firm resolve.

(40) Those who faithfully observe their trusts and their covenants;