My aunt is elderly and hasn't been well lately. She has no interest in the gospel. Please pray.

Lord you know this elderly woman's heart better than anyone here on earth, and how to tough her so she may come to know you before it's too late for her. Give her your peace and let her know your love for her as you remove whatever is stopping her from rendering her heart to you. I pray in the merciful the name of Jesus amen.

No need to describe a negative situation. Our words are powerful. Proverbs 18:21. Feel free to declare what Bible says instead. Lord's promises over a situation.
In Jesus Name I pray mercy, grace, favor over this family. In Jesus Name I decree and declare Psalms 118:25 and abundantly life over this family. In Jesus Name I decree and declare what is impossible with people is possible with God over this family.
In Jesus Name I decree and declare 1 John 3:8 b) over this family. In Jesus Name I decree and declare "The Son of God came to destroy the works of the devil" over this family. In Jesus Name I decree and declare Zechariah 4:7 agaisnt any mountain which is agaisnt this family.

Lord's children are called kings first in Revelation 1:6 KJV. Is important to use authority and office of the king in spiritual realm. Also according with Exodus 20:5 is important to be free from any legal right from any unclean spirit.
In Jesus Name I decree and declare Exodus 14:14 and Deuteronomy 28:6-8 and 1 Chronicles 4:10 and Psalms 1:3 and Psalms 5:12 and Psalms 18:29 and Psalms 18:39 and Psalms 23 and Psalms 91 and Psalms 103:3 and Psalms 107:20 and Psalms 118:17 and Psalms 121:2 and 1 Peter 2:24 and Isaiah 54:17 and Ephesians 3:20 and Romans 8:37 and Philippians 4:13 and Luke 18:27 and Jeremiah 29:11 and 2 Samuel 22:33 and John 16:24 and according with Lord's will over this family.
Thank You Lord