Psalm 102:2-21 and Numbers 21:4-9

Psalm 102:2-21
2 O Lord, hear my prayer, and let my outcry reach you.
3 Do not turn your face away from me. In whatever day that I am in trouble, incline your ear to me. In whatever day that I will call upon you, heed me quickly.
4 For my days have faded away like smoke, and my bones have dried out like firewood.
5 I have been cut down like hay, and my heart has withered, for I had forgotten to eat my bread.
6 Before the voice of my groaning, my bone has adhered to my flesh.
7 I have become like a pelican in solitude. I have become like a night raven in a house.
8 I have kept vigil, and I have become like a solitary sparrow on a roof.
9 All day long my enemies reproached me, and those who praised me swore oaths against me.
10 For I chewed on ashes like bread, and I mixed weeping into my drink.
11 By the face of your anger and indignation, you lifted me up and threw me down.
12 My days have declined like a shadow, and I have dried out like hay.
13 But you, O Lord, endure for eternity, and your memorial is from generation to generation.
14 You will rise up and take pity on Zion, for it is time for its mercy, for the time has come.
15 For its stones have pleased your servants, and they will take pity on its land.
16 And the Gentiles will fear your name, O Lord, and all the kings of the earth your glory.
17 For the Lord has built up Zion, and he will be seen in his glory.
18 He has noticed of the prayer of the humble, and he has not despised their petition.
19 Let these things be written in another generation, and the people who will be created will praise the Lord.
20 For he has gazed from his high sanctuary. From heaven, the Lord has beheld the earth.
21 So may he hear the groans of those in shackles, in order that he may release the sons of the slain.
​Numbers 21:4-9
4 Then they set out from mount Hor, by the way that leads to the Red Sea, to circle around the land of Edom. And the people began to tire of their journey and hardships.
5 And speaking against God and Moses, they said: "Why did you lead us away from Egypt, so as to die in the wilderness? Bread is lacking; there are no waters. Our soul is now nauseous over this very light food."
6 For this reason, the Lord sent fiery serpents among the people, which wounded or killed many of them.
7 And so they went to Moses, and they said: "We have sinned, because we have spoken against the Lord and against you. Pray, so that he may take away these serpents from us." And Moses prayed for the people.
8 And the Lord said to him: "Make a bronze serpent, and place it as a sign. Whoever, having been struck, gazes upon it, shall live."
9 Therefore, Moses made a bronze serpent, and he placed it as a sign. When those who had been struck gazed upon it, they were healed.