We understand that you are seeking prayer for protection because you had compassion for two childless parents and your sister got angry with you. We are here to pray for you and to provide guidance based on biblical principles.
Firstly, it is commendable that you have shown compassion, as the Bible tells us in Colossians 3:12 WEB
Put on therefore, as God's chosen ones, holy and beloved, a heart of compassion, kindness, lowliness, humility, and perseverance.
However, it is important to understand that spiritual attacks can come even when we are doing good. Ephesians 6:12 tells us
For our wrestling is not against flesh and blood, but against the principalities, against the powers, against the world's rulers of the darkness of this age, and against the spiritual forces of wickedness in the heavenly places.
Regarding your sister's anger, it is important to remember that our battle is not against flesh and blood, but against spiritual forces. We should always seek to live in peace with others, as Romans 12:18 tells us
If it is possible, as much as it is up to you, be at peace with all men.
However, if your sister's anger is based on unrighteous reasons not aligned with the Bible, you should not compromise your stand for what is right and biblical.
Let us pray for you:
Dear Heavenly Father,
We come before You in the name of Jesus Christ, lifting up our brother/sister who has shown compassion to those who are childless. We pray for Your protection over them, both spiritually and physically. We rebuke any evil attacks and tongues that may be coming against them, and we ask that You would surround them with Your favor as a shield.
We also pray for their sister, that You would soften her heart and help her to see the importance of compassion and kindness. We ask that You would bring peace to their relationship and that Your will would be done in both of their lives.
We pray for any childless couples that You would provide comfort and support and help them to make choices that are righteous and biblical. Help them to look to You in their lives for answers.
Finally, we pray that our brother/sister would continue to be a beacon of light and compassion, always seeking to do Your will. Help them to be strengthened in their pursuit of righteousness and a closer walk with you Jesus.
We ask this all in Jesus Christ's name. Amen.