Even if ordinances are performed in the temple by a sealer with the keys, the ordinance is not effective until it is sealed by the Holy Spirit of Promise.
To be sealed by the Holy Spirit of Promise is to be Born of God
JST 1 John 3:9
9 Whosoever is born
of God
doth not continue in sin; for the Spirit of God remaineth in him: and
he cannot
continue in sin, because he is born
of
God, having received that holy
Spirit
of promise.
D&C 76:53-56
53 And who overcome by faith, and are sealed
by the Holy Spirit of promise,
which the Father sheds forth upon all those who are just and true.
54 They are they who are the church of the
Firstborn.
55 They are they into whose hands the Father
has given all things—
56 They are they who are priests and kings, who have
received of his fulness, and of his glory;
D&C 88:3-5
3 Wherefore, I now send upon you another Comforter,
even upon you my friends, that it may abide in your hearts, even the
Holy Spirit of promise; which other
Comforter is the same that I promised unto my disciples, as is
recorded in the
testimony of John.
4 This Comforter is the promise which I give unto
you of eternal life, even the glory of the celestial kingdom;
5 Which glory is that of the church of the
Firstborn, even of God, the holiest of all, through Jesus Christ
his Son—
D&C 132:7
7 And verily I say unto you, that the conditions of
this law are these: All covenants, contracts, bonds, obligations,
oaths, vows,
performances, connections, associations, or expectations, that are not
made and
entered into and sealed by the
Holy
Spirit of promise, of him who is anointed, both as well for time
and for
all eternity, and that too most holy, by revelation and commandment
through the
medium of mine anointed, whom I have appointed on the earth to hold
this power
(and I have appointed unto my servant Joseph to hold this power in the
last
days, and there is never but one on the earth at a time on whom this
power and
the keys of this priesthood are conferred), are of no efficacy,
virtue, or
force in and after the resurrection from the dead; for all
contracts that
are not made unto this end have an end when men are dead.