And He began to speak unto them by parables.
“A certain man planted a vineyard, and set an hedge about it, and digged a place for the winefat, and built a tower, and let it out to husbandmen, and went into a far country. And at the season he sent to the husbandmen a servant, that he might receive from the husbandmen of the fruit of the vineyard. And they caught and beat him, and sent him away empty. And again he sent unto them another servant; and at him they cast stones, and wounded him in the head, and sent him away shamefully handled. And again he sent another; and him they killed, and many others; beating some, and killing some.’
‘Having yet therefore one son, his wellbeloved, he sent him also last unto them, saying, ‘They will reverence my son.’ But those husbandmen said among themselves, ‘This is the heir; come, let us kill him, and the inheritance shall be ours.’ And they took him, and killed him, and cast him out of the vineyard. What shall therefore the lord of the vineyard do? He will come and destroy the husbandmen, and will give the vineyard unto others. And have ye not read this Scripture; ‘The stone which the builders rejected is become the head of the corner: this was the Lord’s doing, and it is marvellous in our eyes’?”
And they sought to lay hold on Him, but feared the people: for they knew that He had spoken the parable against them: and they left Him, and went their way. Mark 12:1-12

Jesus is speaking here of the vineyard called Israel. They have rejected God’s ownership of the vineyard, the nation. They have rejected His servants that He sent to receive from them what is due Him and that is their love, respect, and obedience to His word. Also see Isaiah 5:1-7.

The last show of grace and mercy God would give to them was by sending His only begotten Son (John 3:16), and they rejected Him, beating Him and finding nothing in Him worthy of death sentenced Him to die on the cross; the cruelest means of death, by the Romans.

Dear reader, today that show of grace and mercy of God’s Son Jesus; His dying on the cross; was for the redemption of all people who will hear Him, believe His word, and call on His name. He died for you, was buried, and He rose from that grave and came out alive. All who come to Him, He gives eternal life with Him. Reject Him no more. Believe Him.