Or, that.

The supplied words are from the Septuagint and do not appear in the Hebrew text.

Whereas this verse speaks of the sea, in Rom. 10:7 Paul speaks of the abyss. The sea is the mouth of the abyss. See note Rom. 10:7¹ and note Rev. 13:1^2b.

In Rom. 10:6-8 Paul applies the word spoken by Moses in vv. 11-14 to Christ, indicating that the commandment, which is the word of God (vv. 11, 14), is Christ as the Word (John 1:1; Rev. 19:13), who, as the breath that proceeds out of God’s mouth (cf. Deut. 8:3; 2 Tim. 3:16a), is in our heart and in our mouth (see note Rom. 10:8^1a). As the Word of God, the incarnated, crucified, and resurrected Christ Himself, who has become the life-giving Spirit as the breath breathed out by the speaking God (1 Cor. 15:45; John 20:22), is the word of the law — including the commandments, the statutes, and the ordinances (judgments) — rehearsed by Moses in this book. Thus, every word in this book is the very Christ, who is now the word of God for us to receive as our life and life supply by calling on Him (Rom. 10:12-13). See note Deut. 8:3¹ and note Psa. 119:9¹.

Or, extraordinary; wonderful.

Or, curses.

The promise in vv. 1-10 is a prophecy that will be fulfilled at the time of the restoration, at the Lord’s second coming (Matt. 24:30-31).