The word(s) "easts" appears 43 time(s) in 41 verse(s) in Quran in Mohsin Khan translation.

(21) And your Lord knows what their breasts conceal, and what they reveal.

(22) Of mankind are some who say: "We believe in Allah." But if they are made to suffer for the sake of Allah, they consider the trial of mankind as Allah's punishment; and if victory comes from your Lord, (the hypocrites) will say: "Verily we were with you (helping you)." Is not Allah Best Aware of what is in the breasts of the 'Alamin (mankind and jinn).

(23) Nay, but they, the clear Ayat [i.e. the description and the qualities of Prophet Muhammad صلى الله عليه وسلم written in the Taurat (Torah) and the Injeel (Gospel)] are preserved in the breasts of those who have been given knowledge (among the people of the Scriptures). And none but the Zalimun (polytheists and wrongdoers) deny Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.).

(24) And whoever disbelieves, let not his disbelief grieve you (O Muhammad صلى الله عليه وسلم). To Us is their return, and We shall inform them what they have done. Verily, Allah is the All-Knower of what is in the breasts (of men).

(25) And likewise of men and Ad-Dawabb [moving (living) creatures, beasts], and cattle, are of various colours. It is only those who have knowledge among His slaves that fear Allah. Verily, Allah is All-Mighty, Oft-Forgiving.

(26) Verily, Allah is the All-Knower of the Unseen of the heavens and the earth. Verily! He is the All-Knower of that is in the breasts.

(27) If you disbelieve, then verily, Allah is not in need of you; He likes not disbelief for His slaves. And if you are grateful (by being believers), He is pleased therewith for you. No bearer of burdens shall bear the burden of another. Then to your Lord is your return, and He will inform you what you used to do. Verily, He is the All-Knower of that which is in (men's) breasts.

(28) Allah knows the fraud of the eyes, and all that the breasts conceal.

(29) Verily those who dispute about the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of Allah, without any authority having come to them, there is nothing else in their breasts except pride [to accept you (Muhammad صلى الله عليه وسلم) as a Messenger of Allah and to obey you] . They will never have it (i.e. Prophethood which Allah has bestowed upon you). So seek refuge in Allah (O Muhammad صلى الله عليه وسلم from the arrogants). Verily, it is He Who is the All-Hearer, the All-Seer.

(30) And you have (many other) benefits from them, and that you may reach by their means a desire that is in your breasts (i.e. carry your goods, loads, etc.), and on them and on ships you are carried.