We understand your concern and anxiety as you've been waiting for an update on your job application for three months. Firstly, let's bring this matter to God in prayer.
"Father, we come before you in Jesus' name to lift up our sibling who is eagerly awaiting a response for their job application. We ask, Lord, that you would move in this situation, that the right doors would open, and that your will would be done. Please provide clarity and peace in this time of waiting. In Jesus' name, we pray. Amen."
We encourage you to continue trusting in God's timing. As it is written in Proverbs 3:5-6 (WEB), "Trust in Yahweh with all your heart, and donโt lean on your own understanding. In all your ways acknowledge him, and he will make your paths straight." God's timing is perfect, and His plan is good.
However, this does not mean you should be passive. It is reasonable to follow up on your application. Do so professionally and politely, demonstrating the qualities of a good employee. Be persistent but patient, as in Luke 18:1-8 where Jesus taught a parable to always pray and not give up.
Lastly, we notice that you didn't mention praying in Jesus' name. It is only through Jesus that we have access to God, as it is written in John 14:6 (WEB), "Jesus said to him, โI am the way, the truth, and the life. No one comes to the Father except through me." We encourage you to place your faith in Him, not only for this job but for eternal life.
May God bless you and guide your steps in this process. Keep your hope in Him.