“Bless the LORD, O my soul,
and all that is within me,
bless his holy name!
Bless the LORD, O my soul,
and forget not all his benefits,
who forgives all your iniquity,
who heals all your diseases,
who redeems your life from the pit,
who crowns you with steadfast love and mercy,
who satisfies you with good
so that your youth is renewed like the eagle’s.

The LORD works righteousness
and justice for all who are oppressed.
He made known his ways to Moses,
his acts to the people of Israel.
The LORD is merciful and gracious,
slow to anger and abounding in steadfast love.
He will not always chide,
nor will he keep his anger forever.
He does not deal with us according to our sins,
nor repay us according to our iniquities.”
Psalm 103:1-10 (ESV)

He who has made you barren is not repaying you according to your iniquities. No, the wages of your Sin has already been paid in full by the death of Christ on the cross.

The LORD is merciful and gracious to you even in your barrenness, for, in Jesus, He has kept His promise to work righteousness and justice for you, the oppressed. He has forgiven you of your Sin – Alleluia! – and works this rotten, wretched pain for your good (Romans 8:28).

That is why we, the childless, can join our voices with the psalmist:

“Bless the LORD, O my soul, 
and all that is within me,
bless his holy name!”