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Et sic de similibus references:

The purpose of life is to love God and loving God is the only real meaning to our existence.
Rom 8:28
And we know that all things work together for good to them that love God, to them who are the called according to [his] purpose.
2Ti 3:10
But thou hast fully known my doctrine, manner of life, purpose, faith, longsuffering, charity, patience,
Mat 22:36-38
Master, which [is] the great commandment in the law?
Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
This is the first and great commandment.

For this reason God has made us to take away His loneliness and to be His friends and companions for all eternity.
Jhn 15:15
Henceforth I call you not servants; for the servant knoweth not what his lord doeth: but I have called you friends; for all things that I have heard of my Father I have made known unto you.
Mic 6:8
He hath shewed thee, O man, what [is] good; and what doth the LORD require of thee, but to do justly, and to love mercy, and to walk humbly with thy God?
Isa 62:5
For [as] a young man marrieth a virgin, [so] shall thy sons marry thee: and [as] the bridegroom rejoiceth over the bride, [so] shall thy God rejoice over thee.

For this reason God only chooses those who draw nigh to Him with faith and love, for God looks at the heart.
Hbr 11:6
But without faith [it is] impossible to please [him]: for he that cometh to God must believe that he is, and [that] he is a rewarder of them that diligently seek him.

God allows every person the free will to choose and none are forced against their will to become His Bride.
Rev 3:20
Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.

This is the reason why there are so many who have rejected God and are still allowed to go on living without any coercion by God or by His obedient servants.
Mat 13:24-30
Another parable put he forth unto them, saying, The kingdom of heaven is likened unto a man which sowed good seed in his field:
But while men slept, his enemy came and sowed tares among the wheat, and went his way.
But when the blade was sprung up, and brought forth fruit, then appeared the tares also.
So the servants of the householder came and said unto him, Sir, didst not thou sow good seed in thy field? from whence then hath it tares?
He said unto them, An enemy hath done this. The servants said unto him, Wilt thou then that we go and gather them up?
But he said, Nay; lest while ye gather up the tares, ye root up also the wheat with them.
Let both grow together until the harvest: and in the time of harvest I will say to the reapers, Gather ye together first the tares, and bind them in bundles to burn them: but gather the wheat into my barn.

Many are called but few are chosen.
Mat 20:16
So the last shall be first, and the first last: for many be called, but few chosen.
Mat 22:14
For many are called, but few [are] chosen.

He chooses those who seek after Him with a whole heart.
Pro 8:17
I love them that love me; and those that seek me early shall find me.
Psa 70:4
Let all those that seek thee rejoice and be glad in thee: and let such as love thy salvation say continually, Let God be magnified.