And Adam had marital relations with his wife again, and she gave birth to a son. She named him Seth, saying, “God has given me another child in place of Abel because Cain killed him.” And a son was also born to Seth, whom he named Enosh. At that time people began to call on the name of the LORD.
Gen 4:26 “Then men began to call upon the name of the Lord”
Abram “called upon the name of the Lord” (12:8; 13:4; 21:33). Gen 26:25 Isaac “called upon the name of the Lord” (26:25). Elijah said “I will call on the name of the Lord” (1 Kings 18:24)
The Psalmist will “call upon the name of the Lord” (Ps. 116:17) Whoever, “calls on the name of the Lord will be delivered” (Joel 2:32) Peter said “everyone who calls on the name of the Lord shall be saved” (Acts 2:21) Paul said “whoever will call upon the name of the Lord will be saved” (Rom. 10:13) Paul joined ”with all who in every place call upon the name of our Lord Jesus Christ, their Lord and ours” (1 Cor. 1:2).
Would Adam be excluded from those who call on the name of the Lord. I don’t think so. In fact, by implication Adam is the one who taught Cain and Abel to sacrifice which seems to be an OT segment of “calling on the name of the Lord”. Consequently, we have some evidence for the salvation of Adam.
The verb, “call,” can be used for naming (cf. 4:17, 25), reading, proclaiming, summoning, and praying. Usage of this expression in the Pentateuch supports the idea of proclamation more than praying (cf. Gen. 12:8; Exod. 34:6; Lev. 1:1). The meaning of “name” also requires interpretation, since the word is actually followed by the name itself. The word “name” often refers to characteristics or attributes (see Isa. 9:6). The idea of this line is that people began to make proclamation about the nature of the Lord (“began to make proclamation of the Lord by name”).