In certain ways we are weak, but The Spirit is here to help us. For example, when we don’t know what to pray for, The Spirit prays for us in ways that cannot be put into words.
Romans 8:26 (CEV)

But The Lord said, “My Grace is all you need. Only when you are weak can everything be done completely by My Power.” So I will gladly boast about my weaknesses. Then Christ’s Power can stay in me.
II Corinthians 12:9 (ERV)

I receive joy when I am weak. I receive joy when people talk against me and make it hard for me and try to hurt me and make trouble for me. I receive joy when all these things come to me because of Christ. For when I am weak, then I am strong.
II Corinthians 12:10 (NLV)

But God has chosen what the world calls foolish to shame the wise. He has chosen what the world calls weak to shame what is strong.
I Corinthians 1:27 (NLV)