'Lo' in the Bible

and he touched my mouth with it, and said, Lo, this hath touched thy lips; and thine iniquity is taken away, and thy sin forgiven.

And it shall be said in that day, Lo, this is our God; we have waited for him, and he will save us: this is Jehovah; we have waited for him, we will be glad and rejoice in his salvation.

Lo, these shall come from far; and, lo, these from the north and from the west; and these from the land of Sinim.