You have received a guarantee of your spiritual inheritance in Christ in this life.

“This is the land which you shall inherit by lot, which the LORD has commanded to give to the nine tribes and to the half-tribe.” (Num 34:13)
“who is the guarantee [arrabon] of our inheritance until the redemption of the purchased possession, to the praise of His glory.” (Eph 1:14)
“Eye has not seen, nor ear heard, nor have entered into the heart of man the things which God has prepared for those who love Him.” (1Cor 2:9)
“Now to Him who is able [dunamai] to do exceedingly abundantly [huper perissos] above all that we ask or think, according to the power [dunamis] that works [energeo] in us” (Eph 3:20)
“Now He who establishes us with you in Christ and has anointed us is God, who also has sealed us and given us the Spirit in our hearts as a guarantee.” (2Cor 1:21-22)
“Now He who has prepared us for this very thing is God, who also has given us the Spirit as a guarantee [arrabon].” (2Cor 5:5)
“I have come that they may have life, and that they may have it more abundantly.” (Jn 10:10)
“but godliness is profitable for all things, having promise of the life that now is and of that which is to come.” (1Tim 4:8)
“as His divine power has given to us all things that pertain to life and godliness, through the knowledge of Him who called us by glory and virtue” (2Pet 1:3)
“by which have been given to us exceedingly great and precious promises, that through these you may be partakers of the divine nature” (2Pet 1:4)
“Therefore, brethren, be even more diligent to make your call and election sure, for if you do these things you will never stumble” (2Pet 1:10)
Reading: Num 34-36; Matt 16