The word(s) "let" appears 168 time(s) in 139 verse(s) in Quran in Muhammad Habib Shakir translation.

(111) Then let them bring an announcement like it if they are truthful.

(112) Or have they the means by which they listen? Then let their listener bring a clear authority.

(113) The Lord of Strength; so he attained completion,

(114) With goblets and ewers and a cup of pure drink;

(115) But whoever has not the means, let him fast for two months successively before they touch each other; then as for him who is not able, let him feed sixty needy ones; that is in order that you may have faith in Allah and His Apostle, and these are Allah's limits, and the unbelievers shall have a painful punishment.

(116) Secret counsels are only (the work) of the Shaitan that he may cause to grieve those who believe, and he cannot hurt them in the least except with Allah's permission, and on Allah let the believers rely.

(117) O you who believe! be careful of (your duty to) Allah, and let every soul consider what it has sent on for the morrow, and be careful of (your duty to) Allah; surely Allah is Aware of what you do.

(118) O you who believe! when believing women come to you flying, then examine them; Allah knows best their faith; then if you find them to be believing women, do not send them back to the unbelievers, neither are these (women) lawful for them, nor are those (men) lawful for them, and give them what they have spent; and no blame attaches to you in marrying them when you give them their dowries; and hold not to the ties of marriage of unbelieving women, and ask for what you have spent, and let them ask for what they have spent. That is Allah's judgment; He judges between you, and Allah is Knowing, Wise.

(119) O you who believe! let not your wealth, or your children, divert you from the remembrance of Allah; and whoever does that, these are the losers.

(120) Allah, there is no god but He; and upon Allah, then, let the believers rely.