'Numbers' in the Bible

And these are the numbers of the heads of them that were armed for war, who came to David to Hebron, to turn the kingdom of Saul to him, according to the word of Jehovah.

So they established a decree to make proclamation throughout all Israel, from Beer-sheba even to Dan, that they should come to keep the passover unto Jehovah, the God of Israel, at Jerusalem: for they had not kept it in great numbers in such sort as it is written.

My mouth shall tell of thy righteousness, And of thy salvation all the day; For I know not the numbers thereof .