Sam Storms in The Hope of Glory:
If the Father truly loved the Son, surely he would not have exposed him to such horrific suffering. How can the Son be ‘beloeved’ of the Father and yet also the object of his wrath and judgment? Such is the glorious, soul-saving, redemptive mystery of penal substitutionary atonement.
It is possible because the Son and the Father are united in their love for the elect and together entered into a covenant to redeem them from their sins. This could only be accomplished by the Son’s willingly and freely offering himself as a substitute who would wholly absorb the wrath of the Father, which those for whom he died deserved.