The Great Commandment
28 One of the scribes came, and heard them questioning together. Knowing that he had answered them well, asked him, “Which commandment is the greatest of all?” 29 Jesus answered, “The greatest is, ‘Hear, Israel, the Lord our God, the Lord is one: 30 you shall love the Lord your God with all your heart, and with all your soul, and with all your mind, and with all your strength.’  This is the first commandment. 31 The second is like this, ‘You shall love your neighbor as yourself.’  There is no other commandment greater than these.” 32 The scribe said to him, “Truly, teacher, you have said well that he is one, and there is none other but he, 33 and to love him with all the heart, and with all the understanding, with all the soul, and with all the strength, and to love his neighbor as himself, is more important than all whole burnt offerings and sacrifices.” 34 When Jesus saw that he answered wisely, he said to him, “You are not far from the Kingdom of God.”
No one dared ask him any question after that.
The Question about David's Son
The common people heard him gladly.
Jesus Denounces the Scribes
38 In his teaching he said to them, “Beware of the scribes, who like to walk in long robes, and to get greetings in the marketplaces, 39 and the best seats in the synagogues, and the best places at feasts: 40 those who devour widows’ houses, and for a pretense make long prayers. These will receive greater condemnation.”
The Widow's Offering
41 Jesus sat down opposite the treasury, and saw how the multitude cast money into the treasury. Many who were rich cast in much. 42 A poor widow came, and she cast in two small brass coins,  which equal a quadrans coin.  43 He called his disciples to himself, and said to them, “Most certainly I tell you, this poor widow gave more than all those who are giving into the treasury, 44 for they all gave out of their abundance, but she, out of her poverty, gave all that she had to live on.”
12:30 Deuteronomy 6:4-5
12:31 Leviticus 19:18
12:36 Psalm 110:1
12:42 literally, lepta (or widow’s mites). Lepta are very small brass coins worth half a quadrans each, which is a quarter of the copper assarion. Lepta are worth less than 1% of an agricultural worker’s daily wages.
12:42 A quadrans is a coin worth about 1/64 of a denarius. A denarius is about one day’s wages for an agricultural laborer.