Good News Translation
This trouble lasted for only a little while, as a warning. Then you gave them a healing symbol, the bronze snake, to remind them of what your Law requires.

New Revised Standard Version
they were troubled for a little while as a warning, and received a symbol of deliverance to remind them of your law’s command.

Contemporary English Version
because you did this merely as a warning. Then you told them to make a metal snake, so that they would be rescued and remember to obey your Law.

New American Bible
But as a warning, for a short time they were terrorized, though they had a sign of salvation, to remind them of the precept of your law.

Douay-Rheims Bible
But thy wrath endured not for ever, but they were troubled for a short time for their correction, having a sign of salvation, to put them in remembrance of the commandment of thy law.

But thy wrath endured not for ever, but they were troubled for a short time for their correction, having a sign of salvation, to put them in remembrance of the commandment of thy law.

Wisdom 16:4
For it was requisite that inevitable destruction should come upon them that exercised tyranny: but to these it should only be shewn how their enemies were destroyed.

Wisdom 16:5
For when the fierce rage of beasts came upon these, they were destroyed by the bitings of crooked serpents.

Wisdom 16:7
For he that turned to it, was not healed by that which he saw, but by thee, the Saviour of all.

Wisdom 16:8
And in this thou didst shew to our enemies, that thou art he who deliverest from all evil.