For now thou numberest
caphar (saw-far')
to score with a mark as a tally or record, i.e. (by implication) to inscribe, and also to enumerate; intensively, to recount, i.e. celebrate
my steps
tsa`ad (tsah'-ad)
a pace or regular step -- pace, step.
dost thou not watch
shamar (shaw-mar')
to hedge about (as with thorns), i.e. guard; generally, to protect, attend to, etc.
over my sin
chatta'ah (khat-taw-aw')
an offence (sometimes habitual sinfulness), and its penalty, occasion, sacrifice, or expiation; also (concretely) an offender