Although I agree with most of what Lindsey wrote I don't agree on this point.
John 10:16 And
other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd.
This is referring to the Gentiles. That the Gentiles were be fellowheirs of the same promise was not known to the Old Testament prophets.
Ephesians 3:1 For this cause I Paul, the prisoner of Jesus Christ for you Gentiles,
Ephesians 3:2 If ye have heard of the dispensation of the grace of God
which is given me to you-ward:
Ephesians 3:3 How that by revelation he made known unto me the mystery; (as I wrote afore in few words,
Ephesians 3:4 Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)
Ephesians 3:5 Which in other ages was not made known unto the sons of men, as it is now revealed unto his holy apostles and prophets by the Spirit;
Ephesians 3:6
That the Gentiles should be fellowheirs, and of the same body, and partakers of his promise in Christ by the gospel:
The "other sheep" are the Gentiles outside of the sheepfold of Israel.
The promise of Salvation is for those who are fallen under the headship of Adam the first man.
That is why I know there are no men or intelligent beings on other planets except for heavenly beings like the angels etc..
1 Corinthians 15:45 And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit.
1 Corinthians 15:46 Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.
1 Corinthians 15:47 The first
man is of the earth, earthy: the second man is the Lord from heaven.
Man is an earthly being not an alien from outer space.
1 Corinthians 15:48 As is the earthy, such are they also that are earthy: and as is the heavenly, such are they also that are heavenly.
1 Corinthians 15:49 And as we have borne the image of the earthy, we shall also bear the image of the heavenly.
Death came upon man by Adam. Eternal life came by Jesus Christ.
Romans 5:12 Wherefore, as by one man sin entered into the world, and death by sin; and
so death passed upon all men, for that all have sinned:
Romans 5:18 Therefore as by the offence of one judgment came upon all men to condemnation; even so by the righteousness of one the free gift came upon all men unto justification of life.
Salvation is for "earth men"...
Billy Graham like so many other areas of doctrine is wrong in this one as well.