52 Heb “he.”
53 The word “their” does not appear in the Hebrew text, but is supplied in the translation for smoothness.
54 The phrase “like a shadow” (כַּצֵּל, katsel) modifies the verb (“prolong”) rather than the noun (“days”). Several English versions misconstrue the line: “he will not prolong his days, [which are] like a shadow” (, ); “the man who does not fear God is like a shadow” (); and “he will not prolong his shadowy days” (). It should be rendered “he will not prolong his days like a shadow” (, , , , ). Unlike a shadow that lengthens at sunset, the wicked do not normally live long.
55 Heb “he.”
56 Heb “they do not fear.”

In other versions

But it will not be well with the wicked, neither will he prolong his days like a shadow, because he does not fear before God.

Yet because the wicked do not fear God, it will not go well with them, and their days will not lengthen like a shadow.

However, it will not go well with the wicked, and they will not lengthen their days like a shadow, for they are not reverent before God.

The wicked will not prosper, for they do not fear God. Their days will never grow long like the evening shadows.

But it will not go well with the wicked, and they will not prolong their days, like the shadow; because there is no fearing God’s presence.

But it shall not be well with the wicked, neither shall he prolong his days, which are as a shadow; because he feareth not before God.

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