Why does God allow suffering?

Scriptures
John 10:10
‘The thief comes only to steal and kill and destroy. I came that they may have life and have it abundantly. ‘
John 15:18
‘”If the world hates you, know that it has hated me before it hated you. ‘
Romans 8:28-29
‘And we know that for those who love God all things work together for good, for those who are called according to his purpose. For those whom he foreknew he also predestined to be conformed to the image of his Son, in order that he might be the firstborn among many brothers. ‘
Ephesians 1:3
‘Blessed be the God and Father of our Lord Jesus Christ, who has blessed us in Christ with every spiritual blessing in the heavenly places, ‘
Psalms 13:1-2
‘ How long, O Lord ? Will you forget me forever? How long will you hide your face from me? How long must I take counsel in my soul and have sorrow in my heart all the day? How long shall my enemy be exalted over me?’