And why behold you the mote that is in your brother's eye, but consider not the beam that is in your own eye? Or how will you say to your brother, Let me pull out the mote out of your eye; and, behold, a beam is in your own eye? You hypocrite, first cast out the beam out of your own eye; and then shall you see clearly to cast out the mote out of your brother's eye.

- Matthew 7:3-5

The fining pot is for silver, and the furnace for gold: but the LORD tries the hearts.

- Proverbs 17:3

And to one he gave five talents, to another two, and to another one; to every man according to his several ability; and straightway took his journey.

- Matthew 25：15

And I will bring the third part through the fire, and will refine them as silver is refined, and will try them as gold is tried: they shall call on my name, and I will hear them: I will say, It is my people: and they shall say, The LORD is my God”.

- Zechariah 13:9

Rejoice ever more. Pray without ceasing. In every thing give thanks: for this is the will of God in Christ Jesus concerning you.

- 1 Thessalonians 5:16-18