I’m not a pastor or theologian, but it occurred to me that this chapter alone has enough teaching that if one was so inclined perhaps a whole year would not be long enough to teach it all.
Mat 5:11 Blessed are ye, when men shall revile you, and persecute you, and shall say all manner of evil against you falsely, for my sake.
Mat 5:12 Rejoice, and be exceeding glad: for great is your reward in heaven: for so persecuted they the prophets which were before you.
Mat 5:48 Be ye therefore perfect, even as your Father which is in heaven is perfect.
Or perhaps this word of blessing:
Mat 5:6 Blessed are they which do hunger and thirst after righteousness: for they shall be filled.
Mat 5:20 For I say unto you, That except your righteousness shall exceed the righteousness of the scribes and Pharisees, ye shall in no case enter into the kingdom of heaven.
In another context Jesus will teach…
Mat 19:25 When his disciples heard it, they were exceedingly amazed, saying, Who then can be saved?
Mat 19:26 But Jesus beheld them, and said unto them, With men this is impossible; but with God all things are possible.
Jesus’ teaching in Chapter 5 continues though the end of Chapter 7.
Mat 7:28 And it came to pass, when Jesus had ended these sayings, the people were astonished at his doctrine:
Mat 7:29 For he taught them as one having authority, and not as the scribes.
Jesus’ authority echoes on to the end of this Gospel.
Mat 28:16 Then the eleven disciples went away into Galilee, into a mountain where Jesus had appointed them.
Mat 28:17 And when they saw him, they worshipped him: but some doubted.
Gill writes: ……but now he was declared, and made manifest, to be both Lord and Christ; he had “all” power and authority for the settling the affairs of his church and kingdom, to appoint offices and officers in it, and, to bestow gifts upon men, to qualify them for the same, and to institute ordinances to be observed till his second coming……
Mat 28:19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
Mat 28:20 Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world. Amen.