Psalms 12:6

6 aThe words of the Lord are pure words,
like silver refined in a furnace on the ground,
purified seven times.

Jeremiah 23:29

29 bIs not my word like fire, declares the Lord, and clike a hammer that breaks the rock in pieces?

James 1:2

Testing of Your Faith

2 dCount it all joy, my brothers,
Or  brothers and sisters. The plural Greek word adelphoi (translated “brothers”) refers to siblings in a family. In New Testament usage, depending on the context, adelphoi may refer either to men or to both men and women who are siblings (brothers and sisters) in God’s family, the church; also verses 16, 19
when you meet trials fof various kinds,

1 Peter 1:6-7

6In this you rejoice, though now for a little while, if necessary, you have been grieved by gvarious trials, 7so that hthe tested genuineness of your faith—more precious than gold that perishes ithough it is tested by jfire—may be found to result in kpraise and glory and honor at the revelation of Jesus Christ.
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