Good News Translation
Even if there had been only one stubborn person, it would have been a miracle if he had escaped punishment. The Lord is merciful, but he can also become angry. He can be overwhelming in his forgiveness or in his anger.

New Revised Standard Version
Even if there were only one stiff-necked person, it would be a wonder if he remained unpunished. For mercy and wrath are with the Lord; he is mighty to forgive—but he also pours out wrath.

Contemporary English Version
Even if only one person refused to obey the Lord, I would be surprised if he did not punish that one. The Lord loves to show mercy and to use his mighty power to forgive his people, but when his anger overflows against sinners,

New American Bible
Had there been but one stiff-necked person, it would be a wonder had he gone unpunished. For mercy and anger alike are with him; he remits and forgives, but also pours out wrath.

Douay-Rheims Bible
So did he with the six hundred thousand footmen, who were gathered together in the hardness of their heart: and if one had been stiffnecked, it is a wonder if he had escaped unpunished:

So did he with the six hundred thousand footmen, who were gathered together in the hardness of their heart: and if one had been stiffnecked, it is a wonder if he had escaped unpunished:

Sirach 16:9
And he spared not the place where Lot sojourned, but abhorred them for the pride of their word.

Sirach 16:10
He had not pity on them, destroying the whole nation that extolled themselves in their sins.

Sirach 16:12
For mercy and wrath are with him. He is mighty to forgive, and to pour out indignation:

Sirach 16:13
According as his mercy is, so his correction judgeth a man according to his works.