1 Timothy 1:12-13

I thank Christ Jesus our Lord, who has granted me [the needed] strength and made me able for this, because He considered me faithful and trustworthy, putting me into service [for this ministry], even though I was formerly a blasphemer [of our Lord] and a persecutor [of His church] and a shameful and outrageous and violent aggressor [toward believers]. Yet I was shown mercy because I acted out of ignorance in unbelief.