John 3:33-34

However some people do receive His witness. Those who do thereby assert their belief that the Father, not just the Son, is truthful. Seals indicated a personal guarantee as well as denoting ownership (cf. John 6:27). They also made secure (Matthew 27:66) and concealed (Revelation 22:10). Jesus so exactly revealed God’s words that to believe Jesus is to believe God, and to disbelieve Jesus is to disbelieve God (cf. 1 John 5:10).

All of God’s former messengers received a limited measure of God’s Spirit. The Spirit came on the Old Testament prophets only for limited times and purposes. However, God gave His Spirit to Jesus without limit. This guaranteed the truth of Jesus’ words. The Spirit descended on Jesus at His baptism and remained on Him (John 1:32-33; cf. Isaiah 11:2; Isaiah 42:1; Isaiah 61:1). God gave His Spirit without measure only to Jesus (cf. 1 Corinthians 12:4-11).

"Thirty-nine times the Gospel of John refers to Jesus being sent from God (John 3:17; John 3:34; John 4:34; John 5:23-24; John 5:30; John 5:36-38; John 6:29; John 6:38-39; John 6:44; John 6:57; John 7:16; John 7:28-29; John 8:16; John 8:18; John 8:26; John 8:29; John 8:42; John 9:4; John 10:36; John 11:42; John 12:44-45; John 12:49; John 13:16; John 13:20; John 14:24; John 15:21; John 16:5; John 17:3; John 17:18; John 17:21; John 17:23; John 17:25; John 20:21). This affirms Jesus’ deity and heavenly origin, as well as God’s sovereignty and love in initiating the Son’s Incarnation (cf. Galatians 4:4; 1 John 4:9-10; 1 John 4:14)." [Note: Ibid.]