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Ephesians 1:7 (WEB)
In him we have our redemption through his blood, the forgiveness of our trespasses, according to the riches of his grace

Catechism · 4

§2627Article 3 · In the Age of the ChurchRead at vatican.va
“TWO fundamental forms express this movement: our prayer ascends in the Holy Spirit through Christ to the Father - we bless him for having blessed us;” — Catechism footnote: Cf. Eph 1:3-14; 2 Cor 1:3 7; 1 Pet 1:3-9.
§2641Article 3 · In the Age of the ChurchRead at vatican.va
“Doxology, the praise of God, arises from this "marvelous work" of the whole economy of salvation.” — Catechism footnote: Cf. Eph 1:3-14; Rom 16:25-27; Eph 3:20-21; Jude 24-25.

§2839Article 3 · The Seven PetitionsRead at vatican.va
“Our hope is firm because, in his Son, "we have redemption, the forgiveness of sins."” — Catechism footnote: Col 1:14; Eph 1:7.

§517Paragraph 3 · The Mysteries of Christ's LifeRead at vatican.va
“Redemption comes to us above all through the blood of his cross,” — Catechism footnote: Cf. Eph 1:7; Col 1:13-14; 2 Pt 1:18-19.

Irenaeus of Lyons, Against Heresies V.14Book V
“…His own flesh, and redeeming us by His own blood, as the apostle says to the Ephesians, “In whom we have redemption through His blood, the remission of sins;” and again to the same he says, “Ye who formerly were far off have been brought near in the blood of Christ;” and again, “Abolishing in His flesh the enmities,…” — editor's note: Eph. i. 7.
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Cyril of Jerusalem, Catechetical Lectures Lecture 19
“…in Christ: in whom we have our redemption through His blood, the forgiveness of our sins, according to the riches of His grace, wherein He abounded towards us, and what follows; and again, But God being rich in mercy, for His great love wherewith He loved us, when we were dead through our trespasses, quickened us…” — editor's note: Ib. v. 7.
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Colossians 1:14
Ephesians 1:7 and Colossians 1:14 share the same wording (8 words).