It is because of him that you are in Christ Jesus, who has become for us wisdom from God — that is, our righteousness, holiness and redemption.
Philippians 4:6-7
Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus.
1 Corinthians 15:2
By this gospel, you are saved, if you hold firmly to the word I preached to you. Otherwise, you have believed in vain.