This SIngle Verse Is A Conditional Statement You Have Missed

ISAIAH 53:10

53:10:  “If he would offer himself as a guilt-offering”

The suffering servant as a guilt-offering
Following the initial declaration that it was God’s will for the servant to suffer, the verse is written as a conditional statement.  If condition A is satisfied, then the outcome B will occur.  That is, the rewards of verse 10 are contingent on the servant’s willingness to offer himself as anasham, “guilt-offering.”