At the same time that Baptism makes us children of God, it also makes us heirs of eternal salvation. We can be absolutely certain of this on the basis of the Baptismal covenant.
1 Pet. 3:21: Baptism doth also now save us, not the putting away of the filth of the flesh, but the answer of a good conscience toward God, by the resurrection of Jesus Christ.
Rom. 8:17: And if children, then heirs; heirs of God and joint-heirs with Christ, if so be that we suffer with Him, that we may be also glorified together.
Tit. 3:5-7: Not by works of righteousness which we have done, but according to His mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost, which He shed on us abundantly through Jesus Christ our Savior, that being justified by His grace, we should be made heirs according to the hope of eternal life.
1 Pet. 1:21: Who by him (Christ) do believe in God, That raised Him up from the dead, and gave Him glory, that your faith and hope might be in God.
Rom. 5:5: Hope maketh not ashamed.
