A.W. Pink: God the Father imputed our sins and crushed the Son, our Lord and Savior Jesus Christ, under the weight of His fierce penal wrath

The afflictions which the Lord Jesus experienced were not only sufferings at the hands of men, but also enduring punishment at the hand of God: "it pleased the LORD to bruise Him" (Isa. 53:10); "Awake, O sword, against My Shepherd, and against the man that is My Fellow, saith the LORD of hosts: smite the shepherd" (Zech. 13:7) was His edict. But lawful "punishment" presupposes criminality; a righteous God had never inflicted the curse of the law upon Christ unless He had deservedit. That is strong language we are well aware, yet not stronger than what Holy Writ fully warrants, and things need to be stated forcibly and plainly today if an apathetic people is to be aroused. It was because God had transferred to their Substitute all the sins of His people that, officially, Christ deserved to be paid sin’s wages. ... When God imputed sin to Christ as the sinner’s Surety, He charged Him with the same, and dealt with Him accordingly. Christ could not have suffered in the stead of the guilty unless their guilt had been first transferred to Him. The sufferings of Christ were penal. God by act of transcendent grace (to us) laid the iniquities of all that are saved upon Christ, and in consequence, Divine justice finding sin upon Him, punished Him. (A.W. Pink, “Justification,” ch. 5)