"I am sending you out like sheep among wolves. Therefore be as shrewd as snakes and as innocent as doves." -- Matthew 10:16, NIVSalvation is not enough.
That's why history is full of born-again believers who did incredibly stupid stuff -- stupid stuff that hurt a lot of people . . . and made it difficult for many, many more to believe.
- Think of the Children's Crusade.
- Think of Prohibition.
- Or think of the churches that put convicted pedophiles in charge of children's ministries "because they've repented and we need to forgive them."
But in each case, those faithful, sincere, and honest believers did something that was dumber than a sackful of hammers.
That's why Jesus urges us to be wise.
That's why Proverbs teaches us to be wise.
That's why God's people need to be wise.
To be sure, you don't need wisdom to be saved.
But it just might keep somebody else from being lost.