The love of the Father has appeared in thinking of them, thoughts of peace; in contriving and forming the scheme of their peace and reconciliation in Christ, from eternity, (2 Cor. 5:18, 19) in choosing them in him from the beginning, even from everlasting, to salvation, by him, (2 Thess. 2:13) in putting their persons into the hands of Christ, and securing and preserving them in him, (Deut. 33:3; Jude 1:1) in laying up all blessings in him for them, and blessing them with them so early, (Eph. 1:3, 4) in appointing Christ to be the Saviour of them; in providing, promising, and sending him into the world, to work out their salvation, (John 3:16; 1 John 4:9, 10; Titus 3:4, 5) in the pardon of their sins through the blood of Christ, (Isa. 38:17; Eph. 1:7) in their adoption, (1 John 3:1) in their regeneration and conversion, (Jer. 31:3; Eph. 2:4, 5) and in the gift of eternal life unto them (Rom. 6:23).
The love of the Son of God appears in espousing the persons of the elect, those sons of men, in whom his delights were before the world was, (Prov. 8:31; Hosea 2:19) in becoming their Surety for good, undertaking their cause, engaging to do the will of God with that cheerfulness he did; which was to work out their salvation, (Ps. 40:6-8; Heb. 7:22) in assuming their nature, in the fulness of time, to redeem them, work out a righteousness, and make reconciliation for them, (Gal. 4:4, 5; Rom. 8:3, 4; Heb. 2:14, 17) by giving himself a Sacrifice for them; laying down his life on their account; and shedding his blood for the cleansing of their souls, and the remission of their sins (Eph. 5:2, 25; Titus 2:14; 1 John 3:16; Rev. 1:5).
The love of the Spirit, of which mention is made in (Rom. 15:30) appears in his coming into the hearts of God’s elect, to convince them of sin and righteousness, and to comfort them; by showing the grace of the covenant, and the blessings of it to them; by opening and applying the promises of it; and by shedding abroad the love of God and Christ in their hearts; by implanting every grace in them, and drawing them forth into exercise; by witnessing to their spirits their adoption; by assisting them in every duty, particularly in prayer, making intercession for them, according to the will of God; and in being the earnest, pledge, and seal of them to the day of redemption (John 16:7, 8; Rom. 8:15, 16, 26, 27; Eph. 1:13, 14).
John Gill (1697 – 1771) Body of Doctrinal Divinity Book 1, Chapter 12, The Love of God