Why are we called saints?

To annoy Catholics.

"Saints - people who have been separated from the world and consecrated to the worship and service of God. Followers of the Lord are referred to by this phrase throughout the Bible, although its meaning is developed more fully in the New Testament. Consecration (setting apart) and purity are the basic meanings of the term. Believers are called “saints” (Rom. 1:7) and “saints in Christ Jesus” (Phil. 1:1) because they belong to the One who provided their sanctification.

When Christ returns, the saints will be clothed in their “righteous acts” (Rev. 19:8) because they will have continued to live in faith through God’s power (1 Sam. 2:9) and Christ’s praying for them (Rom. 8:27). The saints are also those to whom the privilege of revelation (Col. 1:26; Jude 3) and the task of ministry (Eph. 4:12) are committed." Youngblood, Ronald F. ; Bruce, F. F. ; Harrison, R. K. ; Thomas Nelson Publishers: Nelson's New Illustrated Bible Dictionary. Nashville : T. Nelson, 1995

See:

What are Christian saints according to the Bible? Are saints a select group of Christians that lived especially godly lives?

Response to comment [from a Christian]: "Nice cut and paste? Drive by theology?"

The rest of the article is good, too. What do you think of the content of the article?

"Saint is the personified word for one who is sanctified..."

Set apart like a useful vessel (Rom. 9:21–23; 2 Tim. 2:20–21. You wouldn't want to be a useless pot would you? Rom. 9:21–22; 2 Tim. 2:20.

Why are we called Saints?