ESV: David sent out spies and learned that Saul had indeed come.
NIV: he sent out scouts and learned that Saul had definitely arrived.
NASB: David sent out spies, and he learned that Saul was definitely coming.
CSB: So David sent out spies and knew for certain that Saul had come.
NLT: he sent out spies to verify the report of Saul’s arrival.
KJV: David therefore sent out spies, and understood that Saul was come in very deed.
NKJV: David therefore sent out spies, and understood that Saul had indeed come.