'Prudently' in the Bible

She considers a field before she buys or accepts it [expanding her business prudently];With her profits she plants fruitful vines in her vineyard.

For the shepherds [of the people] have become [like brutes,] irrational and stupid,And have not searched for the Lord or asked about Him or realized their need for Him;Therefore they have not been wise and have not prospered,And all their flocks are scattered.

And his master commended the unjust manager [not for his misdeeds, but] because he had acted shrewdly [by preparing for his future unemployment]; for the sons of this age [the non-believers] are shrewder in relation to their own kind [that is, to the ways of the secular world] than are the sons of light [the believers].

Conduct yourself with wisdom in your interactions with outsiders (non-believers), make the most of each opportunity [treating it as something precious].

In a similar way urge the young men to be sensible and self-controlled and to behave wisely [taking life seriously].