There are only two references in the Bible in which God tells people to be circumspect. The word "circumspect" is from the Latin circumspectus, derived from circumspicere, literally meaning "to look around." To be circumspect is to be cautious and wary.
God told Israel through Moses to be circumspect regarding the Law.
And in all things that I have said unto you be circumspect: and make no mention of the name of other gods, neither let it be heard out of thy mouth.
God told the Body of Christ through Paul to walk circumspectly in the will of God.
(14) Wherefore he saith, Awake thou that sleepest, and arise from the dead, and Christ shall give thee light.
(15) See then that ye walk circumspectly, not as fools, but as wise,
(16) Redeeming the time, because the days are evil.
(17) Wherefore be ye not unwise, but understanding what the will of the Lord is.
The days are evil because we are living in a "present evil world" (Gal. 1:4). Our conversation is in heaven (Phil. 3:20), but we are currently living in ENEMY territory. Are you careless or cautious in your daily walk? Are you wide awake spiritually, walking each day in the will of God? The will of God for this present age is revealed in Paul's epistles (Col. 1:9). Every day that we walk carelessly out of the will of God is a day that we have foolishly WASTED.
Israel went into apostasy because they didn't follow the admonition in Ex. 23:13. The professing church today is in apostasy because they are not following the admonition in Eph. 5:15-17. How about you?