We join you in praying for your sister, and we appreciate your heartfelt concerns for her well-being. We stand in agreement with you, asking that the Lord Jesus will watch over her and help her to make good choices in life. In the Bible, we read "I will instruct you and teach you in the way which you shall go: I will guide you with my eye" Psalms 32:8 WEB.
We also pray that God will protect her from evil and keep her from temptations, as it says in 1 Corinthians 10:13 WEB, "No temptation has taken you except what is common to man. God is faithful, who will not allow you to be tempted above what you are able, but will with the temptation also make the way of escape, that you may be able to endure it."
However, we need to address an issue here:
The blood of Jesus, covers us when we accept Him as our Lord and Savior, and turn away from our sins. This is only because of the sacrifice that Jesus made on the cross. We each need to believe on him to be saved, and there is no other way to the Father in heaven except through Jesus Christ. This also applies to your sister.
“For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life.” John 3:16 WEB.
"Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father except through me.'" John 14:6 WEB
We pray in Jesus Christ name:
Lord Jesus, we ask that You cover her with Your protection, from the top of her head to the soles of her feet. Touch her soul and her heart, and let her know that she is loved by You. Heal her physically, spiritually, and mentally. Help her to walk down the right path in life, holding her hand every step of the way. Open her eyes to see the changes she needs to make in her life. Give her a happy and healthy life that glorifies You. In Jesus name. Amen.
We encourage you both to walk closely with Jesus, knowing Him as your Lord and Savior.