It all adds up.
Ex. 21.24. Eye for eye, tooth for tooth, hand for hand, foot for foot:
Eye = ע the letter ayin = 70
Tooth = ש the letter shin = 300
Hand = י the letter yud = 10
יָשַׁע = 380
Foot = רגל "regel" = 233
Total = 613
It never ends... e.g. 233 = tree of life (עץ החיים)
So what’s so significant about 613 and 233?