Ephesians 5:15-16 AMPC
Look carefully then how you walk! Live purposefully and worthily and accurately, not as the unwise and witless, but as wise (sensible, intelligent people),  Making the very most of the time buying up each opportunity, because the days are evil.
Colossians 4:5 AMPC
Behave yourselves wisely living prudently and with discretion in your relations with those of the outside world (the non-Christians), making the very most of the time and seizing (buying up) the opportunity.