'Secretly' in the Bible

Saul commanded his servants, "Talk with David secretly, and say, 'Behold, the king has delight in you, and all his servants love you: now therefore be the king's son-in-law.'"

The men of David said to him, "Behold, the day of which Yahweh said to you, 'Behold, I will deliver your enemy into your hand, and you shall do to him as it shall seem good to you.'" Then David arose, and cut off the skirt of Saul's robe secretly.