19 Whoever therefore breaks one of the least of these commandments, and teaches men so, shall be called least in the kingdom of heaven; but whoever does and teaches them, he shall be called great in the kingdom of heaven. 20 For I say to you, that unless your righteousness exceeds the righteousness of the scribes and Pharisees, you will by no means enter the kingdom of heaven. (Matthew 5:19–20, NKJV)
Jesus respected and obeyed the Law of Moses, and, He taught those who lived under it to do the same. But, Jesus speaks here to more than faithfully keeping the Law of Moses. He drives to the heart of righteousness in the kingdom of heaven (the Son’s kingdom, which is His church, Matthew 16:18-19; Colossians 1:13; Hebrews 12:22-23, 28). The scribes and Pharisees hypocritically strained at gnats and swallowed camels by emphasizing parts of Moses’ law while abandoning “justice and mercy and faith” (Matthew 23:23-24). That was their form of righteousness. But, righteousness in the kingdom is not about selecting some commands and ignoring others. It is not about displaying ourselves so others will praise us (Matthew 6:1, 5, 16). Greatness in the kingdom of heaven is about a heart and life that “does and teaches” all of God’s commands (Matthew 5:19). That is how we “seek first the kingdom of God and His righteousness” (Matthew 6:33).