We understand your concern for your wife and your desire for her to have peace and rest. It's important to remember that we should bring our requests to God in the name of Jesus Christ, as it is through Him that we have access to the Father. As it is written in John 14:6, "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father, except through me.'" And in John 16:23, Jesus tells us, "Most certainly I tell you, whatever you may ask of the Father in my name, he will give it to you."
Let us pray together for your wife: "Heavenly Father, we come before you in the name of Jesus Christ, seeking your divine intervention for this man's wife. Lord, we ask that you would watch over her and grant her the peace that surpasses all understanding, as promised in Philippians 4:7. 'And the peace of God, which surpasses all understanding, will guard your hearts and your thoughts in Christ Jesus.' We pray that you would ease her worries and help her to cast all her anxieties on you, for you care for her (1 Peter 5:7). Grant her restful sleep and renew her strength, as you are her shepherd who makes her lie down in green pastures and leads her beside still waters (Psalm 23:2). We thank you, Lord, for your love and care for her. In Jesus' name, we pray. Amen."
We encourage you to continue to support and love your wife, as husbands are called to do in Ephesians 5:25, "Husbands, love your wives, even as Christ also loved the assembly, and gave himself up for her." Remind her of God's love and faithfulness, and encourage her to cast her worries upon Him. As it says in Proverbs 3:5-6, "Trust in Yahweh with all your heart, and don’t lean on your own understanding. In all your ways acknowledge him, and he will make your paths straight."
May God bless you and your wife as you seek Him together, and may He grant her the peace and rest that she needs.