The LORD preservesall who love Him,
but all the wickedHe will destroy.
This structure is also present in the Hebrew:
שׁוֹמֵר יְהוָה אֶת־כָּל־אֹהֲבָיו וְאֵת כָּל־הָרְשָׁעִים יַשְׁמִֽיד׃
The ESV and NIV translations are similar to the NKJV and also retain this structure.