Deathlessness in an Immortal God

(Mortal) Man began to proclaim the reputation of the Immortal One (Immortality: Deathlessness)

To call upon the name of Jehovah is to acknowledge, praise, and declare that He alone has an immortal, incorruptible life that we are in need of. The fruits of death that manifest in our flesh is the result of a body that is dying.

1 Timothy 6:16 (About God)
16 Who alone has immortality [in the sense of exemption from every kind of death] and lives in unapproachable light, Whom no man has ever seen or can see. Unto Him be honor and everlasting power and dominion. Amen (so be it).

Genesis 4:26
25 Adam knew [Eve as] his wife again; and she gave birth to a son, and named him Seth, for [she said], “God has granted another child for me in place of Abel, because Cain killed him.” 26 To Seth, also, a son was born, whom he named Enosh (mortal man, mankind). At that [same] time men began to call on the name of the Lord [in worship through prayer, praise, and thanksgiving].

Call: "to call, call out, recite, read, cry out, proclaim"
קָרָא qârâʼ, kaw-raw'; a primitive root (rather identical with H7122 through the idea of accosting a person met); to call out to (i.e. properly, address by name, but used in a wide variety of applications):—bewray (self), that are bidden, call (for, forth, self, upon), cry (unto), (be) famous, guest, invite, mention, (give) name, preach, (make) proclaim(-ation), pronounce, publish, read, renowned, say.

Name:
ם shêm, shame; a primitive word [perhaps rather from H7760 through the idea of definite and conspicuous position; compare H8064]; an appellation, as a mark or memorial of individuality; by implication honor, authority, character:—+ base, (in-) fame(-ous), named(-d), renown, report.

Jehovah:
יְהֹוָה Yᵉhôvâh, yeh-ho-vaw'; from H1961; (the) self-Existent or Eternal; Jeho-vah, Jewish national name of God:—Jehovah, the Lord. Compare H3050, H3069.

Acts 7:60
60 And falling on his knees, he cried out loudly, Lord, fix not this sin upon them [lay it not to their charge]! And when he had said this, he fell asleep [a][in death].

Romans 8:15
15 For [the Spirit which] you have now received [is] not a spirit of slavery to put you once more in bondage to fear, but you have received the Spirit of adoption [the Spirit producing sonship] in [the bliss of] which we cry, Abba (Father)! Father!

Galatians 4:6
6 And because you [really] are [His] sons, God has sent the Spirit of His Son into our hearts, crying out, [a]“Abba! Father!”

Cry:
κράζω krázō, krad'-zo; a primary verb; properly, to "croak" (as a raven) or scream, i.e. (genitive case) to call aloud (shriek, exclaim, intreat):—cry (out).