'Smooth' in the Bible

that sendeth ambassadors by the sea, even in vessels of papyrus upon the waters,'saying , Go, ye swift messengers, to a nation tall and smooth, to a people terrible from their beginning onward, a nation that meteth out and treadeth down, whose land the rivers divide!

In that time shall a present be brought unto Jehovah of hosts from a people tall and smooth, even from a people terrible from their beginning onward, a nation that meteth out and treadeth down, whose land the rivers divide, to the place of the name of Jehovah of hosts, the mount Zion.

that say to the seers, See not; and to the prophets, Prophesy not unto us right things, speak unto us smooth things, prophesy deceits,

I will go before thee, and make the rough places smooth; I will break in pieces the doors of brass, and cut in sunder the bars of iron;

Among the smooth'stones of the valley is thy portion; they, they are thy lot; even to them hast thou poured a drink-offering, thou hast offered an oblation. Shall I be appeased for these things?