Matthew 15 may be divided into three different segments, which, on the surface seem unrelated. This apparent lack of relationship causes us to miss a great deal.
“Blessed are the undefiled [blameless] in the way, who walk in the law of the Lord! Blessed are those who keep His testimonies, who seek Him with the whole heart!” Psalm 119:1-2.
“Open my eyes, that I may see wondrous things from Your law. I am a stranger in the earth; do not hide Your commandments from me.” Psalm 119:18-19.
“Now a great sign appeared in heaven: a woman clothed with the sun, with the moon under her feet, and on her head a garland of twelve stars. Then being with child, she cried out in labor and in pain to give birth.” Revelation 12:1-2.
“Oh, how I love Your law! It is my meditation all the day. You, through Your commandments, make me wiser than my enemies; for they are ever with me. I have more understanding than all my teachers, for Your testimonies are my meditation. I understand more than the ancients, because I keep Your precepts. I have restrained my feet from every evil way, that I may keep Your word. I have not departed from Your judgments, for You Yourself have taught me. How sweet are Your words to my taste, sweeter then honey to my mouth! Through Your precepts I get understanding; therefore I hate every false way.” Psalm 119:97-104.
“He who is unjust, let him be unjust still; he who is filthy, let him be filthy still; he who is righteous, let him be righteous still; he who is holy, let him be holy still.” Revelation 22:11.