Luke 11:10
for every one who asks receives; and he who seeks finds; and to him who knocks it shall be opened.
Luke 18:1
And He spake a parable to them, to the end that they ought always to pray, and not to faint;
James 4:3
Ye ask, and receive not, because ye ask amiss, that ye may spend it on your pleasures.
James 5:11
Behold, we pronounce those happy who endured: ye heard of the patience of Job; and ye saw the end of the Lord, that the Lord is full of pity, and merciful.
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