But their treachery became known to Saul. Now they were also watching the gates, day and night, so that they might put him to death
Other versions
King James Version
But their laying await was known of Saul. And they watched the gates day and night to kill him.English Standard Version
but their plot became known to Saul. They were watching the gates day and night in order to kill him,New International Version
but Saul learned of their plan. Day and night they kept close watch on the city gates in order to kill him.