The New John Gill Exposition of the Entire BiblePsalms 139:3
Thou compassest my path and my lying down…
``to study in the law.''
His walk in the daytime, and every step he took, and his lying down at
night. It denotes his perfect knowledge of all his actions, day and
night; he surrounds every path of man, that they cannot escape his
knowledge. Or, "thou winnowest", as some render the word F3; he
distinguishes actions; he discerns and separates the good from the bad,
or the goodness of an action from the evil and imperfection of it, as
in winnowing the wheat is separated from the chaff. Or, "thou measurest
my squaring" F4; all his dimensions, his length and breadth, as he lay
down in his bed;
and art acquainted [with] all my ways;
the whole of his life and
conversation, all his works and doings: God knows all the evil ways and
works of his people; he takes notice of them, and chastises for them;
and all their good works, and approves and accepts of them; he knows
from what principles of faith and love they spring, in what manner they
are performed, and with what views, aims, and ends; see (Revelation 2:2,19)
(Psalms 1:6) .
F3 (tyrz) "ventilasti", Pagninus, Montanus; so Tigurine version and
F4 (yebr) "quadraturam meam spithama mensurasti", Gussetius, p. 775.
"spithama metiris", Cocceius.