'Smooth' in the Bible

Jacob said to Rebekah his mother, "Behold, Esau my brother is a hairy man, and I am a smooth man.

She put the skins of the young goats on his hands, and on the smooth of his neck.

He took his staff in his hand, and chose for himself five smooth stones out of the brook, and put them in the shepherd's bag which he had, even in his wallet. His sling was in his hand; and he drew near to the Philistine.

His mouth was smooth as butter, but his heart was war. His words were softer than oil, yet they were drawn swords.

that sends ambassadors by the sea, even in vessels of papyrus on the waters, saying, "Go, you swift messengers, to a nation tall and smooth, to a people awesome from their beginning onward, a nation that measures out and treads down, whose land the rivers divide!"

In that time, a present will be brought to Yahweh of Armies from a people tall and smooth, even from a people awesome from their beginning onward, a nation that measures out and treads down, whose land the rivers divide, to the place of the name of Yahweh of Armies, Mount Zion.

"I will go before you, and make the rough places smooth. I will break the doors of brass in pieces, and cut apart the bars of iron.

Among the smooth [stones] of the valley is your portion; they, they are your lot; you have even poured a drink offering to them. You have offered an offering. Shall I be appeased for these things?

Every valley will be filled. Every mountain and hill will be brought low. The crooked will become straight, and the rough ways smooth.

For those who are such don't serve our Lord, Jesus Christ, but their own belly; and by their smooth and flattering speech, they deceive the hearts of the innocent.