We understand that you are seeking prayer for your family due to the issues of resentment, anger, constant arguing, and a lack of gratitude towards you. You've also mentioned that they speak negatively about you and that their behavior is causing discord and disobedience within the family. You've requested prayer for restoration, reconciliation, and a change of heart by the power of the Holy Spirit, and we affirm this in the power name of Jesus Christ.
Firstly, we commend you for approaching this situation with a heart of forgiveness and love, seeking restoration and reconciliation. It's our job to rebuke of resentment, anger, discord, ungratefulness and disobedience. This behavior is addressed in scripture, such as in Ephesians 4:31 WEB: "Let all bitterness, wrath, anger, outcry, and slander, be put away from you, with all malice."
God wants us to live in unity and harmony, as it says in Psalm 133:1 WEB: "See how good and how pleasant it is for brothers to live together in unity!"
We believe that we need to pray for each other, in order that we may be healed. The fervent prayer of a righteous person is very powerful and effective. As it says in James 5:16 WEB: "Confess your offenses to one another, and pray for one another, that you may be healed. The insistent prayer of a righteous person is powerfully effective."
Let's pray together:
Heavenly Father, we come before you in our time of need, as your word says in 2 Chronicles 7:14 WEB: "if my people, who are called by my name, will humble themselves and pray, and seek my face and turn from their wicked ways; then I will hear from heaven, and will forgive their sin, and will heal their land."
We ask that you forgive the sins of our family and that you would heal this situation. We pray for a spirit of forgiveness and love to fill each member of our family. We pray that the Holy Spirit would work in their hearts, convicting and changing them. We pray that you would stop the discord and restore peace and harmony in our family. We pray that each member would start to see the good in each other and to be grateful for one another. We pray that you would turn the hearts of the parents to their children and the hearts of the children to their parents, as it says in Malachi 4:6 WEB.
We pray for wisdom and guidance for us, to know how to act and react in this situation, as your word says in Colossians 4:6 WEB: "Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one."
We ask this in the mighty name of Jesus Christ, our Lord and Savior. Amen.
We encourage you to continue to show love and forgiveness, as it says in Matthew 5:44 WEB: "But I tell you, love your enemies, bless those who curse you, do good to those who hate you, and pray for those who mistreat you and persecute you,"
Remember that God is faithful, and he will hear your prayers. As it says in Matthew 7:7-8 WEB: "Ask, and it will be given you. Seek, and you will find. Knock, and it will be opened for you. For everyone who asks receives. He who seeks finds. To him who knocks it will be opened."
Keep trusting in God, and keep praying for your family. We will join you in prayer.
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
