Covenant

“And I will establish My covenant between Me and you and your descendants after you in their generations, for an everlasting covenant, to be God to you and your descendants after you." Genesis 17.4

Covenant, pact, marriage or accepting Jesus as Lord and Savior involves mutual commitment between creature and Creator. It is all about sacrifice from both parties. Jesus sacrificed and is still sacrificing as He endures our imperfections. From our part, the sacrifice is to surrender our will to do His. This agreement allows Him to be our Lord and God for all eternity.

Sincerely

 "For where your treasure is, there your heart will be also." Matthew 6.21

Treasure means what is most important for each one of us. It is the center of life. Who or what has been your greatest treasure in the whole world? Family? Profession? Assets? Boyfriend Fiancé? Bank account? Car? Religion? You?
Who would you, SINCERELY and HONESTLY, give up your own life for?
Your answer indicates where your heart is.

Resentment

"He who says he abides in Him ought himself also to walk just as He walked." 1 John 2.6

What is the point in confessing Jesus as Savior, be diligent in church, read the Bible, pray and fast, but at the same time, resent someone? Does this behavior has anything to do with Jesus? Is it possible to love God and hold grudges against anyone? Is this walking as Jesus walked?

"For if you forgive men their trespasses, your heavenly Father will also forgive you." Matthew 6.14

Natural man

"But the natural man does not receive the things of the Spirit of God, for they are foolishness to him; nor can he know them, because they are spiritually discerned." 1 Corinthians 2.14

There are only two types of human beings: the natural and the supernatural. The natural man/woman do not receive the things of God because their nature is earthly, natural and Adamic. Therefore, their faith is also natural.
But the supernatural  man/woman obey the Word of the Spirit of God because their nature is heavenly, spiritual and supernatural. Therefore, their faith is supernatural.

Who is who

"But you are not in the flesh but in the Spirit, if indeed the Spirit of God dwells in you. Now if anyone does not have the Spirit of Christ, he is not His." Romans 8.9

In my view, this is one of the most incisive biblical statements. It does not leave room to doubts or discussion. Those who have been possessed by the Spirit of God are so different from those who have not, just as the difference between wine and milk. The behavior of each one bears witness to who is who.

Unbearable

"Bring no more futile sacrifices; incense is an abomination to Me.The New Moons, the Sabbaths, and the calling of assemblies—I cannot endure iniquity and the sacred meeting." Isaiah 1.13

Offerings, sacrifices and religious zeal cannot make up for a person's sins and they are not pleasing to the Lord. The children of Israel know this very well. It was not a difficult task for them to fulfil religious obligations. The hard part was to stay away from sin.
Wouldn't it be the same as a husband full of lovers saying to his wife, "I've given you comfort, good houses, expensive cars, jewellery, money, and everything else you need..."? But she says, "I don't have the most important thing: you."

Faithfulness

"...Be faithful until death, and I will give you the crown of life." Revelation 2.10

The crown of life, that is, eternal life, depends on our faithfulness to the Lord Jesus until death. Just as faith is proven to death, our faithfulness is also. If our forefathers in faith have been proven to the end of their journeys in this world, why would we be spared?
If athletes take pains and sacrifice everything for a perishable gold medal, why should we not sacrifice everything for eternal life?