Boaz represents the person of Jesus Christ who is a kinsman to us and understands our struggles, and redeems us from sin and the affects of sin.
“But when the right time came, God sent his Son, born of a woman, subject to the law. God sent him to buy freedom for us who were slaves to the law, so that he could adopt us as his very own children. And because we are his children, God has sent the Spirit of his Son into our hearts, prompting us to call out, “Abba, Father.” Now you are no longer a slave but God’s own child. And since you are his child, God has made you his heir.”
Galatians 4:4-7 NLT