2/93 — The calf made to be drunk into the heart
وَأُشْرِبُوا۟ — root sh-r-b: to drink. The verb is passive: "they were made to drink". Love of the calf was given to the heart as a drink.
The force of the comparison lies in what drinking is: what is eaten goes to the stomach, what is drunk mixes with the blood. What is drunk cannot be taken out — it spreads through the body and becomes part of the tissue. With this verb the verse tells how deeply an attachment can work into a person's constitution.
And there is one further detail: it says the calf itself was made to be drunk in, not "love of the calf". Such abbreviations are a known style in Arabic; but here the effect looks deliberate — the distance between the object and the attachment felt for it has been removed.
The cause is again stated: "because of their unbelief". The being made to drink, that is, is no arbitrary intervention; it is the consequence of choice. The seal (2/7), the wrapping (2/88) and this verse tell the same principle in three different pictures.