'Staff' in the Bible

I am too small for all the loving-kindness and all the faithfulness that thou hast shewn unto thy servant; for with my staff I passed over this Jordan, and now I am become two troops.

And he said, What pledge shall I give thee? And she said, Thy signet, and thy lace, and thy staff which is in thy hand. And he gave it her, and went in to her; and she conceived by him.

When she was brought forth, she sent to her father-in-law, saying, By the man to whom these belong am I with child; and she said, Acknowledge, I pray thee, whose are this signet, and this lace, and this staff.