I'm not sure how you think this answer the question, so let me ask it again (although it is somewhat of a rhetorical question because the answer is obvious). If people already had eternal life before Jesus, then what was the point of Jesus' sacrifice?
No one had an eternal life before Jesus and still do not to this day. Eternal life comes at the second coming for the saved.
Mark 10:30 But
he shall receive an hundredfold now in this time, houses, and brethren, and sisters, and mothers, and children, and lands, with persecutions; and
in the world to come eternal life.
1 Timothy 4:8 For bodily exercise profiteth little: but godliness is profitable unto all things, having promise of the life that now is,
and of that which is to come.
"to come" means
NOT NOW
Eternal life only comes
in the next world, not this one. What we have NOW is the PROMISE.
Matthew 19:28 And Jesus said unto them, Verily I say unto you, That ye which have followed me,
in the regeneration when the Son of man shall sit in the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel.
Matthew 19:29 And every one that hath forsaken houses, or brethren, or sisters, or father, or mother, or wife, or children, or lands, for my name's sake, shall receive an hundredfold, and shall
inherit everlasting life.
In the regeneration, or the next world, shall we INHERIT everlasting life. We do not receive it now!
Joh_6:40 And this is the will of him that sent me, that every one which seeth the Son, and believeth on him, may have everlasting life: and I will raise him up at the last day.
The "raising up" is the time when everlasting life is to be received.
Rom 6:21 What fruit had ye then in those things whereof ye are now ashamed? for the end of those things is death.
Rom 6:22 But now being made free from sin, and become servants to God, ye have your fruit unto holiness, and
the end everlasting life.
Rom 6:23 For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord.
The end result of serving God is everlasting life just as the end result of serving sin is death.
1 John 2:24 Let that therefore abide in you, which ye have heard from the beginning. If that which ye have heard from the beginning shall remain in you, ye also shall continue in the Son, and in the Father.
1 John 2:25 And this is
the promise that he hath promised us, even eternal life.
We are PROMISED eternal life in the WORLD TO COME.
Titus 3:6 Which he shed on us abundantly through Jesus Christ our Saviour;
Titus 3:7 That being justified by his grace, we should be
made heirs according to
the hope of eternal life.
They did NOT have eternal life at the time of this writing! They were HEIRS, WAITING WITH HOPE to inherit eternal life which is received in the WORLD TO COME which means not this world, not this life but the next...the future!