We are truly sorry to hear about the distressing experience you went through. Let's turn to the Word of God for guidance and comfort. Firstly, it's important to understand that God does not lead us into harm or temptation, but He allows experiences to strengthen our faith and refine us, as stated in
1 Peter 1:7 WEB: "That the proof of your faith, which is more precious than gold that perishes even though it is refined by fire, may be found to result in praise, glory, and honor at the revelation of Jesus Christ".
In such situations, we must put on the full armor of God, as described in
Ephesians 6:10-18 WEB: "Finally, be strong in the Lord, and in the strength of his might. Put on the whole armor of God, that you may be able to stand against the wiles of the devil. 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. Therefore, put on the whole armor of God, that you may be able to withstand in the evil day, and, having done all, to stand. Stand therefore, having the utility belt of truth buckled around your waist, and having put on the breastplate of righteousness, and having fitted your feet with the preparation of the Good News of peace, above all, taking up the shield of faith, with which you will be able to quench all the fiery darts of the evil one. And take the helmet of salvation, and the sword of the Spirit, which is the word of God; with all prayer and requests, praying at all times in the Spirit, and being watchful to this end in all perseverance and requests for all the saints".
It's crucial to understand that spiritual attacks can happen, but God is always with us, as it says in
Matthew 17:20 WEB: "He said to them, Because of your unbelief. For most certainly I tell you, if you have faith as a grain of mustard seed, you will tell this mountain, ‘Move from here to there,’ and it will move; and nothing will be impossible for you".
Regarding the voice you heard, we must be discerning, as the enemy can also whisper lies.
John 10:4-5 WEB: "When he has brought out all of his own, he goes before them, and the sheep follow him, for they know his voice. They will by no means follow a stranger, but will flee from him; for they don’t know the stranger’s voice".
It's reassuring that you resisted and prayed against the lustful intents.
James 4:7 WEB: "Be subject therefore to God. But resist the devil, and he will flee from you".
Let's pray together:
Dear Heavenly Father,
We come before You in the mighty name of Jesus Christ, lifting up our sister who has gone through this distressing experience. We thank You for Your constant presence and protection over her. We bind and rebuke any spirit of lust, perversion, and defilement that tried to attach itself to her, and we cast it out in Jesus' name.
Father, we ask You to cleanse her spirit, soul, and body from any residue of this incident. Restore her peace, purity, and joy in Jesus Christ. Give her wisdom and discernment to recognize Your voice and the voice of the enemy. Strengthen her faith and fill her with Your Holy Spirit to resist and overcome any spiritual attacks.
In the name of Jesus Christ, we praise You and thank You for Your unfailing love and faithfulness. Amen.
Continue to trust in God and keep volunteering as you feel led, but always be wise and discerning in your interactions. May the Lord guide and protect you always. You did not state explicitly that you were trusting in Jesus for salvation. Please raise any question on the subject of salvation and belief in Jesus, and address him as the Son of God.
Prayer Focus: God, Thank You for loving me. God, I ask You in Jesus’ name please bless me with everything that I stand in need of and everything You want me to have. 
