Psalm 15:4 New English Translation

⁴He despises a reprobate,^[a]
but honors the Lord’s loyal followers.^[b]
He makes firm commitments and does not renege on his promise.^[c]

Psalm 15:4 tn Heb “despised in his eyes [is] a rejected [one].” The Hebrew term נִמְאָס (nimʾas, “rejected [one]”) apparently refers here to one who has been rejected by God because of his godless behavior. It stands in contrast to “those who fear God” in the following line.
Psalm 15:4 tn Heb “those who fear the Lord.” The one who fears the Lord respects his sovereignty and obeys his commandments. See Ps 128:1; Prov 14:2.
Psalm 15:4 tn Heb “he takes an oath to do harm and does not change.” The phrase “to do harm” cannot mean “do harm to others,” for the preceding verse clearly characterizes this individual as one who does not harm others. In this context the phrase must refer to an oath to which a self-imprecation is attached. The godly individual takes his commitments to others so seriously he is willing to “swear to his own hurt.” For an example of such an oath, see Ruth 1:16-17.

New English Translation (NET)