“Then he (Judah) said, ‘What pledge shall I give you?’ So she (Tamar) said, ‘Your signet and cord, and your staff that is in your hand.’ Then he gave them to her, and went in to her, and she conceived by him.” Genesis 38:18

“Now He who establishes us with you in Christ and has anointed us is God, who also has sealed us and given us the Spirit in our hearts as a guarantee.” 2 Corinthians 1:21-22