Many Christians are following the Old Testament and are not at all following the New Testament commandments or discerning the prophecies that belongs to our future. We are the New Testament/ New Covenant believers. If you are doing a little given in Old Testament and a little in the New Testament, then also you are not doing right. This mixture of two covenants will bring you under curse. Many people are hurting because they are not following Jesus completely. If you are to follow Jesus you should be under His Commandments/ teachings fully. Everyone who is led by His Spirit is of Him and if not you do not belong to Him. New Testament is very clear. 2 Corinthians 3:14-18(NKJV)
“You are our epistle written in our hearts, known and read by all men; clearly you are an epistle of Christ, ministered by us, written not with ink but by the Spirit of the living God, not on tablets of stone but on tablets of flesh, that is, of the heart. And we have such trust through Christ toward God. Not that we are sufficient of ourselves to think of anything as being from ourselves, but our sufficiency is from God, who also made us sufficient as ministers of the new covenant, not of the letter but of the Spirit; for the letter kills, but the Spirit gives life.” 2 Corinthians 3:2-6 (NKJV)
The Old Testament is written with ink on tablets of stone:
The Ten Commandments that are written on the stone give you rules to follow a moral life. In this the Lord God demanding from you and everything depends on you to follow. This was required of the Jews in Old Testament and everyone of them failed to follow all the rules including King David who tried to do the best. Even King Solomon wrote it is vain to do all these things. Because they could not keep all the commandments, they were under punishment. This is not for New Testament believers. Acts 15:22-29(NIV)
The New Testament is written by the Spirit on the tablet of heart:
For New Testament believers like us, Holy Spirit power is given to live a holy life. For this the Lord God is giving His own power to do and everything depends on Holy Spirit in you. Jesus set an example of the power of Holy Spirit in Him by walking sinless, raising dead and cleansing lepers. And the disciples, who got this power, did the same and mighty miracles and signs followed them. They were ready to suffer for the gospel they were preaching. This is how our life style should be. You can walk in holiness and do mighty works too because it is not you but the Spirit of God in you. Learn to flow with the Holy Spirit who resides in you and walk as the follower of Jesus. Romans 8:10-18(NKJV)
“Therefore, my brethren, you also have become dead to the law through the body of Christ, that you may be married to another—to Him who was raised from the dead, that we should bear fruit to God. For when we were in the flesh, the sinful passions which were aroused by the law were at work in our members to bear fruit to death. But now we have been delivered from the law, having died to what we were held by, so that we should serve in the newness of the Spirit and not in the oldness of the letter.” Romans 7:4-6 (NKJV)