Can you be wise and not be a Christian?
Not according to God's Word. I'm sure that will offend people but truth often does that.
Can you be a Christian and not be wise?
I think the vast counsel of God's Word would say, "No you can't."
I know that will offend some people!
I am not saying Christians can't make occasional unwise decisions, but I am saying that Godly wisdom is the standard to which His people are called.
Wisdom always factors God Word into every decision, "What does God's Word say about this?" is what every Christian is expected to ask.
Wisdom is impossible apart from the Word of God.
Wisdom also factors the will of God into every decision. "What pleases God in this decision? What does God want me to do?" is what every Christian is expected to ask.
Wisdom is impossible apart from knowing God's will.
Wisdom also factor's God's way into every decision. "What is consistent with God's character in this decision?" is what every Christian is supposed to ask.
Wisdom is not independent from a relationship with God through Christ. Wisdom is absolute dependence on God through Christ.
Wisdom is not incidental to a relationship with God through Christ. Wisdom is integral to a relationship with God through Christ as a relationship with Christ through God is integral to wisdom.
Wisdom is the fear of making a decision without God!