godly (man), good, holy (one), merciful, saint, (un- )godly

Boyd’s Bible Dictionary:

(sanctified). In O. T., a pious Jew (Psa. 16:3). In N. T., a Christian believer (Rom. 1:7; 8:27; Heb. 6:10).

Concise Bible Dictionary:

Two words are employed in the Hebrew.
1. chasid, “pious toward God,” also translated “holy” and “godly.” The word occurs frequently in the Psalms, where God speaks of His saints (Psa. 31:23; Psa. 50:5; Psa. 116:15; Psa. 149:1,5,9; etc.).
2. qadosh, “consecrated, set apart, holy” (Deut. 33:3; Job 15:15; Psa. 16:3; Psa. 34:9; Psa. 89:5,7; Dan. 7:18-27; Dan. 8:13; Hos. 11:12; Zech. 14:5). Aaron is called “the saint of Jehovah” (Psa. 106:16).
In the New Testament the word used is ἅγιος, which means “holy one.” A saint is one set apart for God; he is such by calling—not “called to be a saint” (Rom. 1:7; 1 Cor. 1:2; compare Heb. 3:1). Saints are thus a distinct, recognized class of persons belonging to God—His saints (Acts 9:13; Col. 1:26; 1 Thess. 3:13; Jude 1:14). All Christians are embraced in this class, so that the apostle could speak of “all saints” (Eph. 1:15; Eph. 3:18; Col. 1:4; Philem. 1:5). Christians therefore need not shrink from acknowledging the designation by which God has been pleased to distinguish them, and should ever remember that there is a line of conduct that “becometh saints” (Rom. 16:2; Eph. 5:3). The word ἅγιος corresponds with the Hebrew qadosh. The word chasid corresponds more with ὅσιος, translated “holy” (1 Tim. 2:8; Titus 1:8; Heb. 7:26; Rev. 15:4); and “Holy One” (Acts 2:27; Acts 13:35).
As there were many saints on the earth in Old Testament times, so we read in the Revelation that there will be saints on the earth after the church has been taken to heaven. Ignorance of this has often led to a mistaken application of the prophecies to the church (Rev. 13:10; Rev. 14:12; Rev. 18:24; Rev. 20:9).

Strong’s Dictionary of Hebrew Words:

Transliteration:
chaciyd
Phonic:
khaw-seed’
Meaning:
from 2616; properly, kind, i.e. (religiously) pious (a saint)
KJV Usage:
godly (man), good, holy (one), merciful, saint, (un- )godly