First Reading Genesis 15.5-12, 17-18
The Lord said to Abram: “Look toward heaven and count the stars, if you are able to count them.” Then he said to him, “So shall your descendants be.” And he believed the Lord; and the Lord reckoned it to him as righteousness.
Then the Lord said to Abram, “I am the Lord who brought you from Ur of the Chaldeans, to give you this land to possess.” But Abram said, “O Lord God, how am I to know that I shall possess it?”
The Lord said to him, “Bring me a heifer three years old, a female goat three years old, a ram three years old, a turtledove, and a young pigeon.” Abram brought the Lord all these and cut them in two, laying each half over against the other; but he did not cut the birds in two. And when birds of prey came down on the carcasses, Abram drove them away.
As the sun was going down, a deep sleep fell upon Abram, and a deep and terrifying darkness descended upon him. When the sun had gone down and it was dark, a smoking fire pot and a flaming torch passed between these pieces.
On that day the Lord made a covenant with Abram, saying, “To your descendants I give this land, from the river of Egypt to the great river, the river Euphrates.”
Psalm 27
R. The Lord is my light and my salvation.
The Lord is my light and my salvation; whom shall I fear? The Lord is the stronghold of my life; of whom shall I be afraid? R.
Hear, O Lord, when I cry aloud, be gracious to me and answer me! “Come,” my heart says, “seek his face!” Your face, Lord, do I seek. R.
Do not hide your face from me. Do not turn your servant away in anger, you who have been my help. Do not cast me off, do not forsake me, O God of my salvation! R.
I believe that I shall see the goodness of the Lord in the land of the living. Wait for the Lord; be strong, and let your heart take courage; wait for the Lord! R.
Second Reading Philippians 3.20 – 4.1
But our citizenship is in heaven, and it is from there that we are expecting a Saviour, the Lord Jesus Christ. He will transform the body of our humiliation that it may be conformed to the body of his glory, by the power that also enables him to make all things subject to himself.
Therefore, my brothers and sisters, whom I love and long for, my joy and crown, stand firm, my beloved, in the Lord in this way.
Gospel Luke 9.28b-36
Jesus took with him Peter and John and James, and went up on the mountain to pray. And while he was praying, the appearance of his face changed, and his clothes became dazzling white.
Suddenly they saw two men, Moses and Elijah, talking to Jesus. They appeared in glory and were speaking of his exodus, which he was about to accomplish at Jerusalem.
Now Peter and his companions were weighed down with sleep; but since they had stayed awake, they saw his glory and the two men who stood with him.
Just as they were leaving him, Peter said to Jesus, “Master, it is good for us to be here; let us make three dwellings, one for you, one for Moses, and one for Elijah,” but Peter did not know what he said.
While he was saying this, a cloud came and overshadowed them; and they were terrified as they entered the cloud. Then from the cloud came a voice that said, “This is my Son, my Chosen; listen to him!” When the voice had spoken, Jesus was found alone.
And the disciples kept silent and in those days told no one any of the things they had seen.