'Secretly' in the Bible

Then Saul commanded his servants, “Speak to David secretly, saying, ‘Behold, the king delights in you, and all his servants love you; now therefore, become the king’s son-in-law.’”

The men of David said to him, “Behold, this is the day of which the Lord said to you, ‘Behold; I am about to give your enemy into your hand, and you shall do to him as it seems good to you.’” Then David arose and cut off the edge of Saul’s robe secretly.