ESV: And David took these words to heart and was much afraid of Achish the king of Gath.
NIV: David took these words to heart and was very much afraid of Achish king of Gath.
NASB: David took these words to heart and greatly feared Achish king of Gath.
CSB: David took this to heart and became very afraid of King Achish of Gath,
NLT: David heard these comments and was very afraid of what King Achish of Gath might do to him.
KJV: And David laid up these words in his heart, and was sore afraid of Achish the king of Gath.
NKJV: Now David took these words to heart, and was very much afraid of Achish the king of Gath.