We need to understand the principle by which God      works and it is in these quotes you just sent. 
 
 
"The Lord Jesus will always have a chosen people to serve Him. When the Jewish people rejected Christ, the Prince of life, He took from them the kingdom of God and gave it unto the Gentiles. God will continue to work on this principle with every branch of His work.   {LDE 59.1}
 
 
Was the Jewish Church, "Christ's Church"
 
when Jesus came the first time ?  ,Yes
 
they were.  But, were they still Christ's
 
Church after the stoning of Steven in AD
 
34 No they were not !  Before He was
 
crucified on His last visit to the temple,
 
what did He say to the Jewish Leaders ? 
 
He said, "Your house is left unto you
 
desolate" ! By their rejection of Christ,
 
they had left Him an then what did Jesus
 
do ?  The Spirit of God said, "He took from
 
them the kingdom of God and gave it unto
 
the Gentiles. .."  This is the "principle by
 
which Christ works".  That is what we
 
need to understand !
 
 
 
If we take your manner of reasoning, then
 
the Jewish Church, which was Christ's
 
Church when Jesus came must therefore
 
still be His Church because, "The church
 
will never fall" !  But Jesus took
 
FROM  them the kingdom of God and gave
 
it unto the Gentiles. .." 
 
 
 
 
We know Jesus knew exactly what
 
He was doing and His Church did not fall,
 
but, Jesus chose "NEW LEADERS" to lead
 
His Church.  The people fell, not the
 
Church of Jesus !   This is the "principle
 
by which Christ works".
 
 
   The
 
Spirit of God says it again !
 
 
 
"When a church proves unfaithful to the
 
Word of the Lord, whatever their position
 
may be, however high and sacred their
 
calling, The Lord can no longer work with
 
them. Others are then chosen to bear important responsibilities. But, if these in turn do not purify their lives from every wrong action, if they do not establish pure and holy principles in all their
 
borders, then The Lord will grievously
 
afflict and humble them and, unless they repent, will remove them from their place and make them a reproach.—
 
Manuscript Releases 14:102 (1903).{LDE 59.2}
 
This is the "principle by which Christ
 
works".  
 
 
So more evidence that Christ will remove 
 
the "leaders" of His Church and chose
 
Faithful Men to lead His Church !  The
 
Church does not fall, the people prove
 
unfaithful, the Church of Christ continues
 
 
on but under new leaders !
 
 
  The leaders of the
 
church that  Jesus began, by the third
 
century were already in apostasy.  By
 
538 AD, paganism was in control and
 
what happened again ?  The Faithful
 
People, "fled out of" the apostate church
 
and continued the True Faith  in the
 
wilderness !  Once again Christ chose,
 
New Leaders, the Waldenses in Italy, the
 
Huguenots in France and other 
 
small groups in other countries.  And 
 
notice once again the Testimony of The
 
Holy Spirit.
 
 
"From the beginning, faithful souls have
 
Constituted the church on earth......"
 
{AA 11.2}
 
 
And:
 
The Church in the wilderness,” and not the proud hierarchy enthroned in the world's great capital, was the true church of Christ, the guardian of the treasures of truth which God has committed to His People to be given to the world.  {GC88 64.1}
 
 
Remember !     
 
This is the "principle by which Christ
 
works".
 
So then came the 
 
Great Protestant Reformation 
 
 
And thousands more fled out of the
 
Apostate organization that called itself
 
"the church" and a time of terrible
 
persecution followed.
 
 
 
The church then developed into many
 
Protestant denominations with many
 
different leaders and certainly not all
 
agreeing on doctrine !  Then God sent a
 
Special Message to His Church scattered
 
in many different churches to bring them into
 
unity as His Judgment was about to
 
begin in heaven and the return of Christ
 
would follow.  About 50,000 in America,
 
members of many different churches, left
 
their former connections and prepared
 
for Christ's return.  The result of that
 
movement was the,
 
Seventh Day Adventist Church.  This
 
was God's "principle" at work once again.
 
The large number of denominations
 
rejected the message and God,  took
 
FROM  them the kingdom of God and gave
 
it unto Seventh Day Adventist. .."  Who
 
then  became the "True Church of Jesus"
 
But, rememberGod's principle must be
 
applied to  Seventh Day Adventists
 
also also; God has not changed !  If you
 
will be honest with your own soul and in
 
love for perishing souls in the Adventist,
 
churches,  one can not honestly deny
 
that the Organization calling itself, the
 
"church" is in apostasy which the Spirit
 
of God told us would happen.  Even the
 
current president, Ted Wilson has stated
 
in several sermons that this is true and
 
has called for a "revival and reformation"
 
which is totally un-necessary if the
 
people were obeying The Lord !
 
So then we must in all honesty apply
 
God's Principle to the Adventist Church !
 
The Church in the wilderness,” and not the proud hierarchy enthroned in the world's great capital, was (is) the true church of Christ, the guardian of the treasures of truth which God has committed to His People to be given to the world.  {GC88 64.1}
 
"The Lord Jesus will always have a chosen people to serve Him. When the Jewish people rejected Christ, the Prince of life, He took from them the kingdom of God and gave it unto the Gentiles. God will continue to work on this principle with every branch of His work.   {LDE 59.1}
 
"From the beginning, faithful souls have
 
Constituted the church on earth......"
 
{AA 11.2}
 
Christ's Church will never fall, but those
 
who  proclaim that antichrist is their
 
friend have surely fallen and are not
 
members of Christ's Church

Apply
 
God's Principle and you will understand !