GENESIS 24 says: Abraham was now very old, and the Lord had blessed him in every way. He said to the senior servant in his household, the one in charge of all that he had, "Put your hand under my thigh. I want you to swear by the Lord, the God of heaven and the God of earth, that you will not get a wife for my son from the daughters of the Canaanites, among whom I am living, but will go to my country and my own relatives and get a wife for my son Isaac."
The senior servant asked Abraham,"What if the woman is unwilling to come back with me to this land?
Shall I then take your son back to the country you came from?"
Abraham said, "Make sure that you do not take my son back there. The Lord, the God of heaven, Who brought me out of my father's household and my native land and Who spoke to me and promised me on oath, saying, 'To your offsprings I will give this land' -He will send His angel before you so that you can get a wife for my son from there. If the woman is unwilling to come back with you, then you will be released from this oath of mine. Only do not take my son back there."
So the senior servant put his hand under the thigh of his master Abraham and swore an oath to him concerning this matter. (24: 1-9)
Sometimes we do not understand the importance of obedience, because we truly do not understand the severity of God. We fail to appreciate the enormous value of belonging to the kingdom of God.
MATTHEW 13 says: The kingdom of God is like a grain of mustard seed that a man took and sowed in his field. It is the smallest of all seeds, but it grows larger than all the garden plants and becomes a tree. The birds of the air can come and make nests in its branches (13:31-32). The kingdom of God is like leaven that a woman took and hid in 3 measures of flour, till it was all leavened (13:33). The kingdom of God is like treasure hidden in a field. A man found it, and he concealed it. Then in his joy he goes and sells all that he has and buys that field (13:44). Again, the kingdom of God is like a merchant in search of fine pearls (an already made treasure), who, on finding one pearl of great value, went and sold all that he had and bought it (13: 45-46). Again, the kingdom of God is like a net that fisher-folk threw into the sea. The net gathered all sorts of fish. When the net was full, the fisher-folk drew it ashore. They sat down and sorted the good fish into containers but threw away the bad. So it will be at the end of the age. The angels will come out and separate the evil from the righteous and cast the evil into the fiery furnace. In that place there will be weeping and gnashing of teeth (13:47-50). Therefore every scribe who has been trained for the kingdom of God is like a master of a house, who brings out his treasure both what is new and what is old (13: 52).
We won't find the spiritual kingdom of God, far more greater than any of the world empires if we are not seekers of it. God's kingdom has no boundaries and it will be revealed to us only when we seek for it and its value is far superior to all of the riches of the earth. We must secure it in our heart and keep it safe from the devil tricks trying to steal the power of it, because it brings us joy that last forever. Jesus said: "Beware of the leaven of the Pharisees" (Matthew 16:6) in regards of how the power of evil can permeate the heart of the believer just as much as the goodness of God can and we are the ones to notice the difference between nurturing our spiritual life or killing it.
MARK 4 says: The kingdom of God is like a man scattering seed on the ground. He sleeps and rises night and day, and the seed sprouts and grows -he knows not how. The earth, by itself, produces first the blade, then the ear, then the full grain in the ear. But when the grain is ripe, at once man puts in the sickle, because the harvest has come (4: 26-29).
The spiritual nature of the kingdom of God is shown through our hearts. The kingdom is of God, not of man. It is the Lord's doing and it is marvelous in our eyes. All we mortals can do is seek for it. As soon as we find it God alone make the seed grows stage by stage until it mature for harvest. We can not offer to anyone a place in heaven, we has nothing to do with that, except to nurture the process in all brothers and sisters in faith and watch it happen with wonder.
MATTHEW 22 says: The kingdom of God is like a king who prepared a wedding banquet for his son. He sent his servants to those who had been invited to the banquet to tell them to come, but they refused to come. Then he sent some more servants and said, "Tell those who have been invited that I have prepared my dinner. My oxen and fattened cattle have been butchered and everything is ready. Come to the wedding banquet." But they paid no attention and went off -one to his field, another to his business. The rest seized the king's servants, mistreated them and killed them. The king was enraged. He sent his army and destroyed those murderers and burned their city. Then he said to his servants, "The wedding banquet is ready, but those I invited did not deserve to come. Go to the street corners and invite to the banquet anyone you find." So the servants went out into the streets and gathered all the people they could find, both good and bad, and the wedding hall was filled with guests. But when the king came in to see the guests, he noticed a man there who was not wearing wedding clothes.
"Friend," the king asked, "how did you get in here without wedding clothes?"The man was speechless.
Then the king told the attendants, "Tie him hand and foot and throw him outside into the darkness, where there will be weeping and gnashing of teeth."
Nothing is hidden from God. You cannot serve two masters. Romans 6:23 says that the wages of sin is death.
REVELATION 21 says: And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever. And I saw a great white throne, and Him that sat on it, from whose face the earth and the heaven fled away; and there was found no place for them.
And I saw the dead small and great, stand before God; and the Books were opened: and another book was opened, which is the Book of Life: and the dead were judged out of those things which were written in the Book, according to their works. And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works. And death and hell were cast into the lake of fire. This is the second death. And whosoever was not found written in the Book of Life was cast into the lake of fire.