ESV: their heart is unfeeling like fat, but I delight in your law.
NIV: Their hearts are callous and unfeeling, but I delight in your law.
NASB: Their heart is insensitive, like fat, But I delight in Your Law.
CSB: Their hearts are hard and insensitive, but I delight in your instruction.
NLT: Their hearts are dull and stupid, but I delight in your instructions.
KJV: Their heart is as fat as grease; but I delight in thy law.
NKJV: Their heart is as fat as grease, But I delight in Your law.